phosphorylation of either of the terminal hydroxyl groups of glycerol will create: (a) (r)-glycerol-3-phosphate (b) l-glycerol-1-phosphate (c) d-glycerol-3-phosphate (d) a pair of enantiomers (e) none of the above

Answers

Answer 1

Phosphorylation of either of the terminal hydroxyl groups of glycerol will create b. L-glycerol-1-phosphate.

Glycolysis is a metabolic pathway in which glucose is broken down into two pyruvates in the presence of oxygen. Glycerol is a molecule that serves as a precursor to triacylglycerols and phospholipids. Glycerol, which is a 3-carbon molecule, is broken down into dihydroxyacetone phosphate and glyceraldehyde 3-phosphate in the glycolysis pathway.

The structure of glycerol comprises of two terminal hydroxyl groups, -OH, on carbons 1 and 3 of glycerol are the primary alcohol groups. These groups can be phosphorylated by a kinase enzyme to produce two different phosphates: L-glycerol-1-phosphate or D-glycerol-3-phosphate.

Phosphorylation of either of the terminal hydroxyl groups of glycerol will create L-glycerol-1-phosphate. This molecule is a phosphoric acid ester of glycerol that is classified as a glycerophosphate. Phosphorylation of the 1-hydroxyl group produces L-glycerol-1-phosphate, whereas phosphorylation of the 3-hydroxyl group produces D-glycerol-3-phosphate.

Therefore, the phosphorylation of either of the terminal hydroxyl groups of glycerol will create L-glycerol-1-phosphate.

To know more about phosphorylation click here:

https://brainly.com/question/15585148

#SPJ11


Related Questions

What are the configurations for this stereoisomer of 2-bromo-3-chlorobutane?
A. 2S,3S
B. 2S, 3R
C. 2R, 3S
D. 2R, 3R

Answers

The given stereoisomer of 2-bromo-3-chlorobutane has the configuration of 2R, 3S.

What is a stereoisomer? A stereoisomer refers to the isomer of a compound that has the same molecular formula and sequence of atoms as the original compound, but with a different spatial arrangement of atoms.The difference between stereoisomers and structural isomers is that while stereoisomers have the same chemical formula and atom arrangement, structural isomers have different chemical formulas and atom arrangements. For example, glucose and fructose have the same chemical formula (C6H12O6), but they differ in their atom arrangements and are therefore considered stereoisomers.

Types of stereoisomers: Enantiomers: Enantiomers are mirror images of each other and are non-superimposable, meaning they cannot be placed on top of one another. Stereoisomers that are not enantiomers are known as diastereomers. Diastereomers: These are stereoisomers that are not enantiomers but still have the same atom sequence and chemical formula as each other. Diastereomers have different physical and chemical properties that are not due to stereoisomerism. Examples of diastereomers include cis and trans isomers.

Configurations of 2-bromo-3-chlorobutane:According to the given question, the stereoisomer of 2-bromo-3-chlorobutane has the configuration of 2R, 3S.

For more questions on stereoisomer

https://brainly.com/question/24128816

#SPJ11

Which of the following molecules would have the highest boiling point?
A. hexane
B. 2-methylhexane
C. 2-propylpentane
D. octane

Answers

The molecule with the highest boiling point among the given options is 2-propylpentane. This is because the boiling point increases with the size of the molecule and branching lowers the boiling point. Thus, the correct option is C.

What is meant by boiling point?

The boiling point is the temperature at which a liquid changes to a gas state at normal atmospheric pressure. The boiling point is the temperature at which a liquid's vapor pressure is equal to the atmospheric pressure, which is generally measured in kilopascals. When a liquid's vapor pressure equals the atmospheric pressure, the pressure acting on the surface of the liquid becomes equal to the pressure pushing down on the surface of the liquid.

The boiling point of a liquid is the temperature at which the vapor pressure equals the external or atmospheric pressure, resulting in the formation of a vapor bubble inside the liquid. When the vapor bubble leaves the liquid's surface, the boiling process is complete. The boiling point of a pure liquid changes with the external pressure, which influences the liquid's vapor pressure.

The reason for the difference in boiling points is the size of the molecule. The greater the size of the molecule, the greater the dispersion forces between molecules, the higher the boiling point. Also, branching lowers the boiling point, as branching reduces the surface area of the molecule, lowering the ability of the molecule to interact with one another.

Therefore, the correct option is C.

Learn more about Boiling point here:

https://brainly.com/question/25777663

#SPJ11

What is/are the spectator ion(s) for the reaction of perchloric acid with sodium hydroxide? Select ALL of the spectator ions from the list below.a. Na+b. CO2c. O2d. Cl-

Answers

Sodium ion, Na+ and chloride ion, Cl- are the spectator ions of the reaction of perchloric acid with sodium hydroxide. Therefore, options a and d are correct.

What are spectator ions?

Spectator ions are ions that do not undergo a chemical reaction in a chemical equation, and they are in solution in their original form. The balanced chemical equation for the reaction of perchloric acid with sodium hydroxide is:

HClO4(aq) + NaOH(aq) → NaClO4(aq) + H2O(l)

In the reaction above, sodium hydroxide reacts with perchloric acid to form sodium perchlorate and water. During the reaction, H+ and OH- ions combine to form water (H2O) and cancel each other out. This makes them spectator ions. Also, sodium and chloride ions are already present in their original form before and after the reaction. They remain the same, which makes them spectator ions. CO2 and O2 are not spectator ions in this reaction; hence, they are incorrect as possible options in this question.

Learn more about spectator ions on:

https://brainly.com/question/29208113

#SPJ11

Calculate the mass of sodium chloride required to prepare a 100cm^3 of 1.00 mol dm^-3 sodium chloride solution.( The molar mass of sodium Chloride is 58.5gmol^-1)​

Answers

Answer:

To prepare a 1.00 mol dm^-3 sodium chloride solution, we need to dissolve one mole of sodium chloride in one liter of solution (1000 cm^3).

However, we only need to prepare 100 cm^3 of the solution, which is 1/10 of a liter. So we need to dissolve:

1/10 * 1.00 mol = 0.100 mol

of sodium chloride in 100 cm^3 of solution.

The molar mass of sodium chloride is 58.5 g/mol. So to calculate the mass of sodium chloride required, we can use:

mass = number of moles x molar mass

mass = 0.100 mol x 58.5 g/mol

mass = 5.85 g

Therefore, we need 5.85 g of sodium chloride to prepare 100 cm^3 of 1.00 mol dm^-3 sodium chloride solution.

The _____ is the minimum amount of stimulation needed to produce a sensation. a. absolute threshold b. difference threshold c. Weber's threshold d. darkness threshold

Answers

The key response is A. The bare minimum of stimulus required to elicit a sensation is known as the absolute threshold. It is the lowest degree of stimulus intensity at which a person's senses can pick it up.

The concept of absolute threshold is central to sensory psychology. The smallest quantity of energy or stimulation required for a person to notice the existence of a sensory signal, such as sound, light, or touch, is referred to as the minimum threshold. The absolute threshold varies across people and between sensory modalities. Psychophysicists employ a variety of techniques, including the limits approach, the adjustment method, and the constant stimulus method, to ascertain the absolute threshold of a stimulus. Understanding the absolute threshold is crucial to comprehending how our senses function and how we interact with the environment.

learn more about stimulus here:

https://brainly.com/question/30021929

#SPJ4

List at least two situations in which electricity flows outside of common electrical wires.

Answers

Electricity can flow outside of common electrical wires in at least two situations:

1. During an electrical storm, lightning can cause a surge of electricity to flow through the air and into the ground, potentially damaging electrical equipment and causing power outages.

2. In some electrical devices, such as computers and televisions, static electricity can build up and cause a discharge of electricity to flow through the air, potentially damaging the device or causing a shock to the user.

6.carbon 14 (14c) is unstable and has a half-life of 5730 years. an organic material buried in sedimentary rocks shows the parent-daughter ratio at 1:15 (meaning 1/16 parent, 15/16 daughter). assuming there was no daughter element at the time of burial, how old is this organic material?

Answers

The time of burial, the organic material will be about 34,880 years old.

What is the half-life of an element?

Half-life (t½) is the time which is required for a quantity of the substance to reduce to the half of its initial value. The term is commonly used in the nuclear physics to describe how quickly the unstable atoms or chemical elements undergo the radioactive decay or how long the stable atoms survive.


The amount of carbon 14 (14C) which can be found in the organic matter decreases due to the radiocarbon process. This process is also called as the radioactive decay. The half-life of carbon-14 (14C) is 5730 years. An organic material which was buried in the sedimentary rocks is examined, and it is the parent-daughter ratio is equal to about 1:15, indicating that there will be 1/16 of the parent element and 15/16 of the daughter element.

The organic material is supposed to have no daughter element at the time of burial. The age of this organic material is to be calculated. As given, the ratio of parent-daughter elements is 1:15 (1/16 parent, 15/16 daughter). After one half-life (i.e., 5730 years), half of the parent atoms will have decayed to the daughter atoms. Therefore, the parent-to-daughter ratio would be 1/32 parent, 31/32 daughter.

After the two half-lives (5730 + 5730 = 11460 years), 1/4 of the original parent atoms will remain, and the ratio will be 1/4 parent, 3/4 daughter. 1/4 is equal to 4/16. 4/16 + 12/16 = 16/16 = 1. This implies that the original amount of carbon 14 (14C) was about 4/16 of what it would have been if there were no daughter material present. To determine the age of the organic material, we may set up the following equation:

Parent to daughter ratio = 1:15 after 2 half-lives,

which is 5730 × 2 = 11,460.15/16 = (1/2)² × (1/16) = 1/64 (15 daughter atoms)

Therefore, there were originally 4 × 15 = 60 carbon 14 (14C) atoms.

1/64 = 1/60 × (1/2)n where n is the number of half-lives which have occurred.

Multiplying both sides by 60 × 64 gives: 1 = 64 × (1/2)n

Subtracting 64 from both sides gives: 63 = (1/2)n

Taking the natural logarithm of both sides gives: ln(-63) = n ln(1/2)

The value of ln(1/2) is -0.69315, so:

n = ln(-63)/ln(1/2)n = 6.0 half-lives have passed (rounded up).

Therefore, the organic material is 6 × 5730 = 34,380 years old.

Learn more about Half-life here:

https://brainly.com/question/24710827

#SPJ11

While the composition of oxygen and nitrogen in air does not change with altitude, the decreasing temperature at high altitude does change the percent of air that is composed of H2O. Assuming constant relative humidity, which of the following can be asserted about the total grams of H2O in a given volume of air at 3000 m above sea level versus at sea level?
A. Assuming constant relative humidity means that air has roughly the same mass of H2O per unit volume at 3000 m above sea level.
B. Whether air at very high altitude has more or less mass of H2O per unit volume than it does at sea level depends on the temperature at high altitude.
C. Air has significantly more mass of H2O per unit volume at 3000 m above sea level.
D. Air has significantly less mass of H2O per unit volume at 3000 m above sea level.

Answers

The correct assertion is that whether air at very high altitude has more or less mass of H2O per unit volume than it does at sea level depends on the temperature at high altitude and the correct option is option B.

As the altitude increases, the temperature decreases. The amount of water vapor that air can hold is dependent on its temperature, with colder air being able to hold less moisture.

Therefore, at higher altitudes with lower temperatures, the air has a reduced capacity to hold water vapor. This means that the amount of water vapor in a given volume of air at high altitude will be less than at sea level, assuming constant relative humidity.

Thus, the ideal selection is option B.

Learn more about Composition of air, here:

https://brainly.com/question/28704548

#SPJ12

who performed an experiment with a cathode ray tube and discovered the existence of negatively charged particles within the atom?

Answers

The scientist who performed an experiment with a cathode ray tube and discovered the existence of negatively charged particles within the atom was J.J. Thomson.

This experiment is commonly known as the cathode ray tube experiment. A cathode ray tube experiment is a scientific experiment that was carried out to show that negatively charged particles exist in atoms. The experiment involves passing an electric current through a gas-filled tube called a cathode ray tube.  J.J. Thomson discovered that cathode rays were made up of negatively charged particles called electrons. He discovered that the charge to mass ratio of these particles was much greater than that of the atoms that the cathode ray tube was made of. This led him to conclude that these particles were not part of the atom but were rather a fundamental constituent of all atoms.

This was a groundbreaking discovery and it led to the development of the atomic model. The first "subatomic particles," called electrons by Irish scientist George Johnstone Stoney in 1891, were negatively charged particles smaller than atoms. J. J. Thomson was able to measure the charge-mass ratio of cathode rays in 1897 and demonstrate this. Ferdinand Braun, a German physicist, created the "Braun tube," the first iteration of the CRT, in 1897. A Crookes tube modified with a phosphor-coated screen, it was a cold-cathode diode. It was Braun who originally thought of using a CRT as a display device.

For more such questions on J.J. Thomson , Visit:

https://brainly.com/question/18621643

#SPJ11

Directions: Balance the following chemical equations. Descriptions of the equation, physical states, and atoms that are ions (have a
positive or negative charge) have absolutely no effect on balancing. The problems at the very end with a "**" are extremely difficult.
They are far more difficult thaN the problems that will appear on your test of final exam. Give them a try if you like a challenge or have
extra time in class
1) 2 C2H6(g) + 7 O2(g)  4 CO2(g) + 6 H2O(g)
2) 2 NaN3(s)  2 Na(s) + 3 N2(g)
3) 6 Na + Fe2O3  3 Na2O + 2 Fe
4) 3 Mg(s) + N2(g)  Mg3N2(s)
5) 2 Na + 2 NH3  2 NaNH2 + H2
6) Na2O + 2 CO2 + H2O  2 NaHCO3
7) P4S3(s) + 6 O2(g)  P4O6(g) + 3 SO2(g)
8) 2 Na3PO4 + 3 CaCl2  Ca3(PO4)2 + 6 NaCl
9) 2 C8H18(l) + 25 O2(g)  16 CO2(g) + 18 H2O(g)
10) C2H6O(l) + 3 O2(g)  2 CO2(g) + 3 H2O(g)
11) Pb(NO3)2 + 2 KI  PbI2 + 2 KNO3
12) 2 N2O5  4 NO2 + O2
13) 2 KClO3(s)  2 KCl(s) + 3 O2(g)
14) 2 CO(g) + O2(g)  2 CO2(g)
15) 2 C57H110O6(s) + 163 O2(g)  114 CO2(g) + 110 H2O(l)
16) 6 Na + 2 O2  2 Na2O + Na2O217) 2 Al + 3 H2SO4  Al2(SO4)3 + 3 H2
18) 2 C7H10N + 21 O2  14 CO2 + 10 H2O + 2 NO2
19) 2 Al(OH)3 + 3 H2SO4  Al2(SO4)3 + 6 H2O
20) 3 BaO + 14 Al  3 BaAl4 + Al2O3
21) 2 AgN3(s)  3 N2(g) + 2 Ag(s)
22) Pt + 4 HNO3 + 6 HCl  H2PtCl6 + 4 NO2 + 4 H2O
23) 2 LuCl3 + 3 Ca  2 Lu + 3 CaCl2
24) XeF6 + 3 H2O  XeO3 + 6 HF
25) Ba2XeO6 + 2 H2SO4  2 BaSO4 + 2 H2O + XeO4
26) P4O6 + 6 H2O  4 H3PO3
27) 2 C6H14(l) + 19 O2(g)  12 CO2(g) + 14 H2O(g)
28) 2 MoS2 + 7 O2  2 MoO3 + 4 SO2
**22) 2 K2MnF6 + 4 SbF5  4 KSbF6 + 2 MnF3 + F2
**23) S + 6 HNO3  H2SO4 + 6 NO2 + H2O
**24) 3 Cu + 8 HNO3  3 Cu(NO3)2 + 2 NO + 4 H2O
**25) CuS + 8 HNO3  CuSO4 + 8 NO2 + 4 H2O
**26) Cu2S + 12 HNO3  Cu(NO3)2 + CuSO4 + 10 NO2 + 6 H2O
**27) 5 NaBr + NaBrO3 + 3 H2SO4  3 Br2 + 3 Na2SO4 + 3 H2O
**28) 48 KNO3 + 5 C12H22O11  24 N2 + 36 CO2 + 55 H2O + 24 K2CO3

Answers

The chemical equations shown in the question are already balanced. It can be said to be balanced if the number of atoms of each element involved in the reaction is equal to the number of atoms of the same element in the product of the reaction.

The Balancing method

The Balancing method is used to balance chemical equations. Here are the steps involved in balancing chemical equations:

Step 1: First write down the unbalanced chemical equation.Step 2: Next, start balancing the elements that appear in the equation.Step 3: Begin by adding a coefficient to one of the elements on one side of the equation.Step 4: In order to balance the equation, the coefficient will then have to be added to other elements on the same side of the equation.Step 5: Finally, when the elements on the left and right sides of the equation are equal, then the equation is balanced.The equation is now balanced if the number of atoms of each element in the reactants is equal to the number of atoms of the same element in the products after balancing.

learn more about balanced chemical equations

https://brainly.com/question/26694427

#SPJ11

Calculate the acid ionization constant (Ka) for the acid. Express your answer using two significant figures. IVO AO ? K. = Submit Request Answer A 0.120 M solution of a weak acid (HA) has a pH of 3.28. You may want to reference (Pages 737 - 745) section 16.6 while completing this problem.

Answers

Answer :  The acid ionization constant (Ka) for the given acid HA is 1.1 x 10^(-5), rounded to two significant figures.

To calculate the acid ionization constant (Ka) for the given acid HA, we must first find its pH using the given concentration of the solution. Then, we can use the pH to find the concentration of H+ ions in the solution. Finally, we can plug these values into the expression for Ka to solve for the acid ionization constant.

The pH of the 0.120 M solution of HA is given to be 3.28. This means that [H+] = 10^(-pH) = 10^(-3.28) = 5.01 x 10^(-4) M.
Now, we can use the expression for Ka: Ka = [H+][A-]/[HA],  Since HA is a weak acid, we can assume that it dissociates as follows: HA + H2O ⇌ H3O+ + A- This means that [A-] = [H3O+], and [HA] = initial concentration of the acid (0.120 M) - [H3O+].

Substituting these values, we get: Ka = (5.01 x 10^(-4) M)^2 / (0.120 M - 5.01 x 10^(-4) M) = 1.1 x 10^(-5). Therefore, the acid ionization constant (Ka) for the given acid HA is 1.1 x 10^(-5), rounded to two significant figures.

Know more about acid ionization constant here:

https://brainly.com/question/4110687

#SPJ11

Classify the two amino acids below according to their effective polarity in proteins at pH-7.4. n-Nonpolar up Uncharged polar cp Charged polar NH2 HN Polarity NH 1. Arginine (Arg or R) HN O-PO3H2 Polarity 2. O-phosphoserine (unnatural) HN Classify the two amino acids below according to their effective polarity in proteins at pH-7.4. n Nonpolar up Uncharged polar cp = Charged polar NH2 Polbncy 1. Lysine (Lys or K) HN OH Pollncity Threonine (Thr or T) HN Classify the two amino acids below according to their effective polarity in proteins at pH-7.4 Nonpolar up Uncharged polar cp Charged polar NH Polarity 1. Histidine (His or H) HN Polarity 2. 4-Hydroxyproline (unnatural) он

Answers


At pH-7.4, Arginine (Arg or R) is classified as a charged polar amino acid, as it contains a positively charged side chain.

The positively charged side chain is formed by the guanidinium group of the amino acid. Lysine (Lys or K) is classified as a nonpolar amino acid, as it contains a hydrocarbon side chain with no charged polar group.

Threonine (Thr or T) is classified as an uncharged polar amino acid, as it contains a polar OH group. Histidine (His or H) is classified as a charged polar amino acid, as it contains a positively charged imidazole side chain.

Lastly, 4-Hydroxyproline (unnatural) is classified as an uncharged polar amino acid, as it contains a polar OH group.

Polarity plays an important role in proteins and the structure of amino acids. The charged polar amino acids contain a side chain that consists of an electrically charged group.

These amino acids are hydrophilic and will form hydrogen bonds with other amino acids in the protein. Nonpolar amino acids contain a side chain that is composed of only carbon and hydrogen atoms, which have no charge.

These amino acids are hydrophobic, meaning that they tend to repel water, and form hydrophobic interactions with other amino acids in the protein.

Uncharged polar amino acids have side chains that contain polar molecules that have no charge, but they are still hydrophilic and can form hydrogen bonds with other amino acids in the protein.

Amino acid polarity is an important factor that affects protein structure and how amino acids interact with each other.

By understanding the polarity of an amino acid, researchers can better understand how an amino acid fits into the protein structure and what interactions it can form with other amino acids.

to know more about Arginine refer here:

https://brainly.com/question/13589467#

#SPJ11

Consider the following equation in answering #45 CH4(g) + 202(g) → CO2(g) + 2H2O(g) 5. This reaction is performed under constant temperature and pressure, and 2.75 L of gas are collected when the reaction is complete. How many liters of methane (CH4) were present at the beginning of the reaction? a. 0.917 L b. 1.00L c. 1.83 L d. 2.75 L e. 5.50I

Answers

The reaction is performed under constant temperature and pressure, and 2.75 L of gas are collected when the reaction is complete. The volume of methane present at the beginning of the reaction is 2.49 L. Thus, the correct option will be D.

What is the volume of methane?

Balanced equation can be written as: CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g). From the balanced chemical equation, it is clear that 1 mole of CH₄ reacts with 2 moles of H₂O gas. Hence, the number of moles of CH₄ can be calculated by using the ideal gas equation, that is,

PV = nRT

V/n = RT/P

n = PV/RT

The volume of gas is V = 2.75 L. The temperature and pressure are constant. Hence, PV = nRT

The gas constant R = 0.0821 L atm K⁻¹mol⁻¹

The temperature is not given, hence can be assumed to be 298 K. The pressure is not given, hence can be assumed to be 1 atm.

2.75 × 1 = n × 0.0821 × 298

n = (2.75 × 1) / (0.0821 × 298) = 0.111 mole

From the balanced chemical equation, it is known that 1 mole of CH₄ occupies 22.4 L at STP. Hence, the number of liters of CH₄ present at the beginning of the reaction can be calculated by using the following formula.

Volume of CH₄ = n(CH₄) × 22.4 = 0.111 × 22.4 = 2.4864 L

Approximately, the number of liters of CH₄ present at the beginning of the reaction is 2.49 L.

Learn more about Chemical reaction here:

https://brainly.com/question/29762834

#SPJ11

Occurs naturally in bedrock and leads to the formation of radon.a.Uranium-238b.Coalc.Natural Gasd.Oile.Solar

Answers

Uranium 238 occurs naturally in bedrock and leads to the formation of radon. So. option (a) is correct.

Uranium-238 is said to be the most common isotope of uranium found in nature having a relative abundance of 99%. Uranium-238 is non-fissile that means it cannot sustain a chain reaction in a thermal-neutron reactor. Depleted uranium that is uranium containing mostly U-238 can be used for radiation shielding or as projectiles in armor-piercing weapons. Uranium-238 occurs naturally in nearly all rock, soil, and water. Uranium-238 is the most abundant form in the environment. Radon is said to be an odorless, invisible, radioactive gas naturally released from rocks, soil, and water. It can get into homes and buildings through small cracks or holes and build up in the air.

To learn more about Uranium-238

https://brainly.com/question/29623106

#SPJ4

Complete question is,

Occurs naturally in bedrock and leads to the formation of radon.

a. Uranium-238

b. coal

c. natural Gas

d. Oil

e. Solar

if a reaction mixture initially contains 5 mol of a and 6 mol of b, how much heat (in kj) will have evolved once the reaction has occurred to the greatest extent possible?

Answers

If a reaction mixture initially contains 5 mol of a and 6 mol of b, then the heat which will have evolved once the reaction has occurred to the greatest extent possible will be -4102.5KJ.

What is heat of reaction?

The given reaction mixture initially contains 5 mol of A and 6 mol of B. We have to find the amount of heat (in kJ) evolved once the reaction has occurred to the greatest extent possible. The balanced chemical equation for the reaction is:

2A + 3B → 4C + 5D

The given reaction is an exothermic reaction. Hence, when the reaction occurs, heat will be evolved. The heat evolved is equal to the product of the number of moles of reactants and the standard enthalpy change of the reaction. The heat evolved can be calculated as follows: Moles of A = 5, Moles of B = 6, Moles of limiting reagent = 5/2 = 2.5

From the balanced chemical equation, it can be seen that 2 moles of A react with 3 moles of B. Hence, 2.5 moles of A will react completely with 2.5 × 3/2 = 3.75 moles of B. The number of moles of A remaining unreacted = 5 - 2.5 = 2.5. The number of moles of B remaining unreacted = 6 - 3.75 = 2.25. The heat evolved during the reaction = (2.5 + 3.75) × (-426) = -4102.5 kJ.

Hence, the amount of heat evolved once the reaction has occurred to the greatest extent possible is -4102.5 kJ.

Learn more about Heat of reaction here:

https://brainly.com/question/30464598


#SPJ11

give the numerical value of n corresponding to the 3p orbital.

Answers

The orbitals that electrons occupy in the quantum mechanical model of the atom have particular energy levels. The size of the electron's orbital is determined by the primary quantum number (n).

an integer that represents the energy level of an electron. The third energy level or shell of the atom contains a subshell called the 3p orbital. As a result, the 3p orbital's numerical value of n equals 3. The third energy level's p subshell, which comes in two different varieties, has three orbitals: 3px, 3py, and 3pz. These orbitals each have a different spatial orientation within the atom and have the capacity to accommodate up to two electrons.The primary quantum number, n=3, and the 3p orbital are equivalent. The energy level of an electron in an atom is described by the fundamental quantum number, n. The "p" in 3p stands for the orbital shape or subshell, and the "3" refers to the value of n.

learn more about 3p orbital here:

https://brainly.com/question/29291501

#SPJ4

an unknown mineral sample scratches fluorite but cannot scratch apatite. what is the approximate hardness of this mineral?

Answers

According to the Mohs scale of hardness, the unidentified mineral sample's hardness can be calculated to be between 4 and 5 if it can scratch fluorite but not apatite.

The Mohs hardness scale, a qualitative scale with 1 being the softest (talc) and 10 being the hardest, rates minerals according to their relative hardness (diamond). The scale is determined by a material's capacity to scrape another mineral. Any mineral with a lower number on the scale can be scratched, while a mineral with a greater number cannot be scratched. The unknown mineral must have a hardness between 4 and 5, as it can scratch fluorite (hardness of 4) but not apatite (hardness of 5). based upon With this knowledge, it is possible to estimate that the unidentified mineral has a Mohs hardness of about 4.5.

learn more about mineral  here:

https://brainly.com/question/18078524

#SPJ4

What is the most flammable element in the periodic table?
A. fluoride
B. sulfur
C. uranium
D. hydrogen

Answers

Hydrogen
Reason; The most combustible element is hydrogen. It occurs as a diatomic molecule but in the presence of an oxidizer like oxygen, the covalent bond between the hydrogen atoms break and it then reacts with oxygen to give water molecules. Being an exothermic reaction, it releases enough heat to cause more dissociation of
H
2
molecules resulting in a chain reaction.

we expected that the acetylsalicylic acid would be converted to salicylic acid during this experiment. was it? discuss using the measured melting point range as evidence.

Answers

The reaction that happens between salicylic acid and acetic anhydride is the synthesis of aspirin. Acetylsalicylic acid is the outcome of this reaction. We expected that acetylsalicylic acid would be transformed into salicylic acid during the experiment.

The measured melting point range is evidence for the transformation. The melting point range of the substance created was 128-132 degrees Celsius. The melting point range of Salicylic acid is 158-161 degrees Celsius. The melting point of the material produced by the experiment is significantly lower than the melting point of salicylic acid.

Therefore, it is evident that acetylsalicylic acid was converted to salicylic acid during this experiment. The results of the experiment are in line with the hypothesis.

Learn more about acids: https://brainly.com/question/25148363

#SPJ11

for 280.0 ml of a buffer solution that is 0.225 m in hcho2 and 0.300 m in kcho2, calculate the initial ph and the final ph after adding 0.028 mol of n

Answers

The amount of salt in the buffer solution will rise by 0.028 mol since the added Na is a salt. The amount of acid present won't alter. Consequently, the finished pH of the As a result, the buffer solution's final pH may be determined as follows: pH = 4.74 + log((0.300 + 0.028)/0.225) = 5.11.

The Henderson-Hasselbalch equation, which asserts that pH = pKa + log([salt]/[acid]), may be used to determine the initial pH of a buffer solution. HCHO2 and KCHO2 have pKas of 4.74 and 9.31, respectively. Consequently, the following formula may be used to determine the buffer solution's starting pH: pH = 4.74 + log(0.300/0.225) = 4.98.

The buffer solution will become more basic as a result of the addition of hydroxide ions after adding 0.028 mol of Na. With the revised salt and acid concentrations, the Henderson-Hasselbalch equation may still be used to determine the buffer solution's ultimate pH.

Learn more about buffer solution  at:

https://brainly.com/question/31367305

#SPJ12

Alyssa repeated the titration of a 5.00 mL antimony trichloride solution with distilled water until a slightly cloudy appearance persisted after thoroughly mixing the solution. Based on her data, she calculated the following concentrations for SbClz and HCl. Calculate the equilibrium constant, K, for the hydrolysis of the antimony trichloride. Concentration of SbCl3 = 0.028 M Concentration of HCI = 2 M Note: Do not use scientific notation or units in your response. Sig figs will not be graded in this question, enter your response to four decimal places. Carmen may add or remove digits from your response, your submission will still be graded correctly if this happens.

Answers

The equilibrium constant for the hydrolysis of antimony trichloride is 1.68 x 10^-4.

Titration is a laboratory process used to calculate the concentration of a solution by using a standard solution of known concentration.

Alyssa performed a titration of a 5.00 mL antimony trichloride solution with distilled water to determine the equilibrium constant, K, for the hydrolysis of the antimony trichloride.


Concentration of SbCl3 = 0.028 M

Concentration of HCI = 2 M

K = [Sb(OH)xCl3-x]/[HCl]x

We know that the concentration of antimony trichloride (SbCl3) is 0.028 M. When it hydrolyzes, it forms Sb(OH)xCl3-x, and we need to determine the concentration of this compound.

As per the question, the solution became slightly cloudy after thoroughly mixing it with distilled water. This indicates that some of the SbCl3 has hydrolyzed into Sb(OH)xCl3-x.

We also know that the concentration of HCl is 2 M. From the formula, we can see that the equilibrium constant is the ratio of the concentration of Sb(OH)xCl3-x to the concentration of HCl.

Therefore, we need to determine the concentration of Sb(OH)xCl3-x.

We need to determine the concentration of hydroxide ions (OH-) in the solution. Since antimony trichloride is a weak acid, it will not completely dissociate in water.

Therefore, we need to use the acid dissociation constant (Ka) of SbCl3 to determine the concentration of hydroxide ions.

Ka = [Sb(OH)xCl3-x][H+]/[SbCl3]

At equilibrium, the concentration of SbCl3-x and H+ is equal to the concentration of OH-. Therefore,

Ka = [Sb(OH)xCl3-x][OH-]/[SbCl3]

Solving for [Sb(OH)xCl3-x], we get:

[Sb(OH)xCl3-x] = Ka[SbCl3]/[OH-]

Since we know that the concentration of SbCl3 is 0.028 M and the Ka value of SbCl3 is 3.0 x 10^-7,

[Sb(OH)xCl3-x] = (3.0 x 10^-7)(0.028 M)/[OH-]

We need to determine the concentration of hydroxide ions (OH-) in the solution. Since SbCl3 is a weak acid, it will not completely dissociate in water.

Therefore, we need to use the acid dissociation constant (Ka) of SbCl3 to determine the concentration of hydroxide ions.

Ka = [Sb(OH)xCl3-x][H+]/[SbCl3]

At equilibrium, the concentration of SbCl3-x and H+ is equal to the concentration of OH-. Therefore,

Ka = [Sb(OH)xCl3-x][OH-]/[SbCl3]


[OH-] = (Ka[SbCl3])/[Sb(OH)xCl3-x]

[OH-] = (3.0 x 10^-7)(0.028 M)/[Sb(OH)xCl3-x]


K = [Sb(OH)xCl3-x]/[HCl]

K = ([OH-][SbCl3])/[HCl(Sb(OH)xCl3-x)]



K = [(3.0 x 10^-7)(0.028 M)(2 M)]/[Sb(OH)xCl3-x]

K = 1.68 x 10^-4

Therefore, the equilibrium constant for the hydrolysis of antimony trichloride is 1.68 x 10^-4.

to know more about equilibrium refer here:

https://brainly.com/question/30807709#

#SPJ11

12. The amount of H2, gas produced and the amount of copper metal dissolved in the reaction is directly proportional to the number of electrons transferred. A Faraday represents the charge carried by one mole of electrons. In Part 4 of this experiment you will determine Faraday's constant by measuring the amount of charge required per mole of electrons consumed or produced in each of the half-reactions. a) Write the half-reaction that occurs at the anode and that occurs at the cathode. b) The cathode is a copper wire, partly covered with plastic. Why is it important to make sure all the bare copper wire is inside the burette?

Answers

a) At the anode, the half-reaction is: 2H+ (aq) --> H2 (g) + 2e-  
   At the cathode, the half-reaction is: Cu2+ (aq) + 2e- --> Cu (s)

b) It is important to make sure that all the bare copper wire is inside the burette because the copper metal dissolved in the reaction is directly proportional to the number of electrons transferred. The copper metal is produced at the cathode when two electrons are transferred, so the entire copper wire must be in the burette to measure the amount of charge transferred and determine Faraday's constant.
The half-reaction that occurs at the anode is:Cu → Cu2+ + 2e- The half-reaction that occurs at the cathode is:H2 + 2e- → 2H+b) It is important to make sure all the bare copper wire is inside the burette because the electrons must be able to travel from the wire into the solution, and the wire must be completely submerged in the solution so that the electroplating reaction can occur properly.

For more such questions on Cathode

https://brainly.com/question/18621643

#SPJ11

2-Bromobutane is optically active but 1-Bromobutane is optically inactive. Why?2-bromobutane is a chiral molecule as it contains an asymmetric carbon atom therefore, it is optically active whereas 1-bromobutane is an achiral molecule as it does not contain an asymmetric carbon atom therefore it is optically inactive.

Answers

2-Bromobutane is optically active because it is a chiral molecule, which contains an asymmetric carbon atom. On the other hand, 1-Bromobutane is optically inactive because it is an achiral molecule, which does not contain an asymmetric carbon atom.

Optically active molecule- A chiral molecule that is capable of rotating light is an optically active molecule.

Chiral molecule- A molecule is called a chiral molecule if it cannot be superimposed with its mirror image. This molecule has no plane of symmetry.

To learn more about "optically active", visit; https://brainly.com/question/24215073

#SPJ11

When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are: H2S (g) + O2 (g) H2O (l) + SO2 (g)

Answers

The balanced molecular equation for

H₂S (g) + O₂ (g) ⟶ H₂O (l) + SO₂ (g)   is given by:

2H₂S (g) + 3O₂ (g) ⟶ 2H₂O (l) + 2SO₂ (g).

The equation is to be balanced, and it must obey the law of conservation of mass, which states that the number of atoms on the reactants' side must be equal to the number of atoms on the products' side.

To balance the equation for H₂S (g) + O₂ (g) ⟶ H₂O (l) + SO₂ (g), let us consider sulfur first. On the reactant side, there is one sulfur atom, but there are two sulfur atoms on the product side. To equalize the number of sulfur atoms, a coefficient of two must be placed in front of H₂S:H₂S (g) + O₂ (g) ⟶ 2H₂O (l) + SO₂ (g)

Now we'll count oxygen atoms. There are two oxygen atoms in H₂S and three oxygen atoms in O₂, bringing the total to five. There are four oxygen atoms in H₂O and two in SO₂, for a total of six. The oxygen atoms are not balanced. We must add one more O₂ to the reactant side to equalize the number of oxygen atoms:

2H₂S (g) + 3O₂ (g) ⟶ 2H₂O (l) + 2SO₂ (g)

The molecular equation is now balanced with

2H₂S (g) + 3O₂ (g) ⟶ 2H₂O (l) + 2SO₂ (g)

To learn more about "balanced molecular equation", visit: https://brainly.com/question/11904811

#SPJ11

Which organelle breaks down chemicals in the cell?

Answers

The organelle that breaks down chemicals in the cell is the lysosome.

Lysosomes are membrane-bound organelles that contain digestive enzymes that are responsible for breaking down various biomolecules, such as proteins, nucleic acids, carbohydrates, and lipids, into their constituent building blocks. These enzymes are able to break down these molecules through hydrolysis, where water is used to break the chemical bonds. Lysosomes play a crucial role in maintaining cellular homeostasis by removing unwanted or damaged cellular components, recycling macromolecules, and its defending against invading microorganisms. Dysfunction of lysosomes can lead to a variety of diseases known as lysosomal storage disorders.

To know more about Lysosomes, here

brainly.com/question/28202356

#SPJ4

how many kilojoules of heat are absorbed when 0.46 grams of chloroethane vaporizes at its normal boiling point?​ The molar heat of vaporization of chloroethan is 24.7 kJ/mol.

Answers

Answer: 0.188 kJ

Explanation: (0.46g C2H5Cl)(1 mol C2H5Cl/64.51g C2H5Cl)(26.4 kJ/1 mol C2H5Cl) = 0.188 kJ

I hope this helps!

The heat of vaporization is the quantity of heat which needs to be absorbed to vaporize a particular quantity of a liquid at a constant temperature. The kilojoules of heat absorbed is 0.177 kJ.

What is molar heat of vaporization?

The molar heat of vaporization is defined as the energy which is required to vaporize one mole of a liquid. The units are usually kilojoules per mole, or kJ/mol. It is an important part of energy calculations which tells how much energy is needed to boil each mole of substance on hand.

Since the vaporization and condensation of a given substance are the exact opposite processes, the numerical value of the molar heat of vaporization is same as the numerical value of the molar heat of condensation.

0.46 g C₂H₅Cl × 1 mol C₂H₅Cl / 64 g C₂H₅Cl × 24.7 kJ / 1 mol = 0.177 kJ

Thus the kilojoules of heat absorbed is 0.177 kJ.

To know more about molar heat of vaporization, visit;

https://brainly.com/question/29401184

#SPJ2

The diagram above represents four cations, all shown to the same scale. Which cation would be predicted by Coulomb’s law to have the strongest ion-dipole attraction to water, and why?Li+, because it is the smallest group 1 metal ion.Mg2+, because it has the largest charge-to-size ratio.Na+, because it has the smallest charge-to-size ratio.Ca2+, because it is the largest group 2 metal ion.

Answers

The cation with the strongest ion-dipole attraction to water can be predicted using Coulomb’s law. This means that, for two given charges, the closer they are to each other, the stronger the force of attraction between them.  Li+ has the strongest ion-dipole attraction to water, according to Coulomb’s law, due to its small size. Mg2+, Na+, and Ca2+ have larger sizes than Li+, making them further away from water molecules and causing them to have weaker ion-dipole attractions.


The diagram shows four cations, Li+, Mg2+, Na+, and Ca2+. According to Coulomb’s law, Li+ would be predicted to have the strongest ion-dipole attraction to water, due to its small size. As a group 1 metal ion, Li+ has the smallest size of the four cations, and thus is closer to the water molecules. This means that the force of attraction between Li+ and water is larger than between any of the other cations and water, making Li+ have the strongest ion-dipole attraction.


Mg2+, on the other hand, has the largest charge-to-size ratio of the four cations, but this is not sufficient to make it have the strongest ion-dipole attraction. Na+ has the smallest charge-to-size ratio, meaning it has the lowest charge compared to its size. Finally, Ca2+ is the largest group 2 metal ion and therefore has a larger size, meaning it is further away from water molecules. This means that none of the other three cations can have the same strength of attraction as Li+.

Know more about Coulomb’s law here:

https://brainly.com/question/506926

#SPJ11

A neutralization reaction produces H2O and SrBr2. Select the acid-base reactants for this neutralization reaction.
a. SrOH
b. HSr
c. Br(OH)2
d. HBr
e. Sr(OH)2

Answers

The neutralization reaction produces H₂O and SrBr₂. The acid-base reactants for this neutralization reaction are HBr and Sr(OH)₂. Hence, correct option are b) and e).

What is a neutralization reaction?

A neutralization reaction is a chemical reaction between an acid and a base that creates salt and water. Acids donate hydrogen ions, while bases accept them.

When the two react, they neutralize each other and form water (H₂O) and salt. The salt formed is a combination of the anion (from the acid) and the cation (from the base).

In this reaction, acid-base reactants are mixed and neutralized to form water (H₂O) and SrBr₂.

The chemical equation for the reaction:

HBr + Sr(OH)₂ → H₂O + SrBr2

Acid-base reactants for this neutralization reaction are HBr and Sr(OH)₂, and the product produced is water (H₂O) and SrBr₂. Option are b) and e) are correct .

To know more about the neutralization reaction:

https://brainly.com/question/28970253

#SPJ11

"¿CÓMO ENVIAR SUMINISTROS A ZONAS INACCESIBLES?"

Una empresa dedicada a la fabricación y distribución de insumos médicos está ensayando distintos diseños de paracaídas para atender su reparto de vacunas a lugares inaccesibles como pequeñas poblaciones asentadas en quebradas o en selva virgen donde no existen carreteras de acceso o pistas de aterrizaje. En este momento sus paracaídas se encuentran en la etapa de investigación y ensayos que permitan asegurar que una caja con las vacunas en frascos de vidrio no se dañe en el momento de llegar al suelo. Dentro de los parámetros de eficiencia que maneja la empresa fabricante de estos paracaídas para suministros, este debe ser pequeño, económico, ligero, resistente; pero en especial, debe reducir significativamente la velocidad de caída de una caja de tetrapak de 1 litro cuyo peso oscila entre los 45 g y 50 g, es decir, el tiempo de descenso con el paracaídas debe ser por lo menos el triple del tiempo de caída libre de la caja.



Para tu pregunta de indagación y su respectiva hipótesis de trabajo, distribuye tus variables en el siguiente cuadro:

Variable Independiente (V. I): Causa



Variable Dependiente (V. D): Efecto



Variables intervinientes (Por controlar para que no afecte a la variable dependiente)


Ayuda porfa doy corona!!!!!

Answers

The independent variable is the design of the parachute, the dependent variable is the descent time of the box, and the intervening variables to control are air resistance, wind direction, and altitude.

Based on the hypothesis that using a parachute design that reduces the falling speed of a box with vaccines will prevent damage upon landing in not accessible areas, the experiment will test the effectiveness of various parachute designs in reducing the falling speed of a 1-liter box weighing between 45g and 50g.

The independent variable is the parachute design, while the dependent variable is the falling speed of the box. The intervening variables that will be controlled to ensure accuracy in the experiment include wind speed, altitude, and weight of the box. The results of the experiment will provide insight into the most effective parachute design for safely delivering vaccines to not accessible areas.

To know more about independent variables, here

brainly.com/question/29430246

#SPJ4

--The complete question is, "HOW TO SEND SUPPLIES TO INACCESSIBLE AREAS?"

A company dedicated to the manufacture and distribution of medical supplies is testing different parachute designs to handle the distribution of vaccines to inaccessible areas such as small populations settled in gorges or vir-gin jungle where there are no access roads or runways. At present, their parachutes are in the research and testing stage to ensure that a box with vaccines in glass vials is not damaged when it reaches the ground. Within the efficiency parameters that the manufacturer of these supply parachutes handles, it should be small, economical, lightweight, resistant; but especially, it must significantly reduce the falling speed of a 1-liter tetrapak box weighing between 45g and 50g, that is, the descent time with the parachute must be at least triple the free fall time of the box.

For your inquiry question and its respective working hypothesis, distribute your variables in the following table:

Independent Variable (IV): Cause

Dependent Variable (DV): Effect

Intervening Variables (To control so they do not affect the dependent variable)--

which of the following could be added to a solution of sodium acetate to produce a buffer?group of answer choiceshydrochloric acid onlypotassium acetate onlyacetic acid or hydrochloric acidacetic acid only

Answers

Adding either hydrochloric acid or acetic acid to a solution of sodium acetate can produce a buffer. The chemical equation for the reaction between sodium acetate and hydrochloric acid is NaAc + HCl → NaCl + HAc, and for the reaction between sodium acetate and acetic acid is NaAc + HAc → NaCl + AcOH.
Sodium acetate can be used to make buffer solutions. A buffer is a solution that resists changes in pH when an acid or base is added. The two most important components of a buffer are a weak acid and its corresponding conjugate base. Acetic acid and sodium acetate are two such components that can be used to create a buffer. As a result, the answer to the question is acetic acid. Hence, option (c) acetic acid or hydrochloric acid is correct. Therefore, adding acetic acid to a sodium acetate solution would produce a buffer. The buffer solution can withstand pH changes when hydrochloric acid is added. Since hydrochloric acid is a strong acid, it ionizes completely in the solution and lowers the pH significantly. Acetic acid is a weak acid, on the other hand. It ionizes partially in solution, resulting in a small decrease in pH. When hydrochloric acid is added to the acetic acid-sodium acetate buffer, the additional hydrogen ions react with the buffer's acetate ion to form more acetic acid, which consumes the hydrogen ions and prevents a drastic decrease in pH. This is how a buffer works.

For more information follow this link: https://brainly.com/question/22821585

#SPJ11

Other Questions
Otto Inc. retires old equipment with a book value of $2,400. Otto shouldMultiple choice question.A. debit cash for $2,400B. not make a journal entryC. recognize a gain of $2,400D. Recognize a loss of $2,400 Suppose that we execute the statements from the previous question, and then we execute these statements:*p1 = *p2;Draw a picture of memory after this additional statement. Can somebody explain to me what this text is saying (summarize) Tamber-Rosenau, Esterman, Chiu and Yantis (2011) conducted a functional magnetic resonance imaging (fMRI) study with human participants to examine how the executive attention and orienting attention networks allocate attention in a visual attention task. Participants watched an RSVP display consisting of two streams of letters, one to the left of fixation and one to the right of fixation. They found that: as you read about societies based in different places, it can be difficult to keep track of when events took place in relation to one another. place the following events in chronological order. Read the passage from the New Testament of the Bible please help me with ela ill give you brainlist May provide a more accurate assessment of an applicant's job-related personality traits than other types of interviews Unstructured interview 2. Should be avoided in favor of other types of interviewsa. Situational interview of other typ b. Behavioral-description interview c. Unstructured interview d. Does not apply that focus on What is an abiotic factor that can prevent the organism from becoming preserved, AFTER it has been buried?Answer options:1. Groundwater2. Predators & animals that eat bones.3. Scavengers & plants that use the nutrients of fossils.4. Other animals of the same species as the organism that died. In the poem, "In Spite of War," what does the speaker mean by "a glory liveth through despair"?Question 1 options:that people become more glorious through hardshipthat war helps people achieve glorythat despair can make people strongerthat life goes on even when bad things happen Balance and state the type for these equations: _Ca(OH)2 + _HCl > _CaCl2+ _H2O 3. Use the table below to determine the number of days between June 27 and August 30. The table is on theeterminenext page.O178 days64 days58 daysO242 days if the federal reserve decreases the money supply when there is a tax increase, then equilibrium income most likely will ___ , and the equilibrium interest rate will ___. write the equations for the balance of the forces in the horizontal and vertical directions for block a and for block b (four equations). start with the force exerted on block a in the horizontal direction. within the electromagnetic spectrum, visible light provides the energy for photosynthesis and has a By what like amount does the length and width of 6 by 4 rectangle need to be increased for its area to be doubled porrectQuestion 2Individuals who identify as male and female were surveyed regarding their diets.VegetarianPescatarianVegan182745MaleFemaleTotalMeat-eater0.21353772122335241438Total891011900/1 ptsWhat is the probability that a randomly selected person is a pescatarian or vegetarian?Round your answer to the hundredths place. The points (-2, -2) and (5,5) are the endpoints of the diameter of a circle. Find the length of the radius of the circle. write the empirical formula for at least four ionic compounds that could be formed from the following ions: oCIO3^-,onh4^ ,och3co2^-,opb^4+ Whats 21 square root of 98 divided by 7 square root of 21