when an electron jumps from a larger orbit to a smaller orbit within an atom, it changes from a energy level to a energy level and a photon is .

The element is aluminum (Al), which is in the third period of the periodic table and has the electron configuration [Ne]3s²3p¹.

The element can be identified by analyzing the ionization energies. The third row of the periodic table contains elements with the electron configuration [Ar] 3d¹⁰4s²4p¹. Based on the given ionization energies, we can identify the element by finding the period that contains the first eight ionization energies listed.

Looking at the given ionization energies, we can see that the first ionization energy is relatively low, indicating that the element is a metal. The next seven ionization energies increase gradually, indicating that they correspond to removing electrons from successive energy levels.

To know more about electron configuration here

https://brainly.com/question/27856323

#SPJ4

Answer:Lymphatic malformations (LM), also known as lymphangiomas, are characterized by the overgrowth of lymphatic vessels during pre- and postnatal development.

KCl would be the substance can dissolve only (is saturated at) 40 g in 60°C water

Option C  is correct.

A supersaturated solution is described as a solution that contains more than the average solvent that can be dissolved at a given temperature

​ At 60ºC, the solubility of KCl is about 42g/100mL of water. Therefore, since we have 40g of KCl that were dissolved in less than 100mL of water, the solution would be supersaturated.

In conclusion, supersaturation occurs with a solution when the concentration of a solute exceeds the concentration specified by the value of solubility at equilibrium.

Learn more about a supersaturated solution  at: brainly.com/question/17592745

#SPJ1

Use reagent f. H2CrO4. Chromic acid is a strong acid used to oxidize alcohols into ketones and carboxylic acids. Chromium trioxide combines with water to produce chromic acid, which is deliquescent, light red or brown in color, and soluble in water.

Lindlar catalyst is a type of heterogeneous catalyst used in organic chemistry for hydrogenation reactions. It is composed of palladium metal supported on calcium carbonate, barium sulfate, or similar materials, and is commonly used in the partial hydrogenation of alkynes to alkenes. The catalyst is named after its inventor, Herbert Lindlar, who developed it in the 1950s.

Lindlar catalyst is a selective catalyst, which means that it allows for the hydrogenation of alkyne functional groups to alkenes while inhibiting further hydrogenation to alkanes. This is achieved by using poisoned or deactivated palladium that restricts the catalyst's activity and allows for partial hydrogenation to occur. This controlled hydrogenation is useful in organic synthesis because it provides a way to selectively reduce alkynes to alkenes without the formation of unwanted byproducts.

Reagent (f) can directly convert given alcohol to its carboxylic acid.

To learn more about the lindlar catalyst, click the given link ;

brainly.com/question/14464125

#SPJ4

The most likely oxidation state for a titanium cation is +4 and Titanium has four valence electrons in its outermost shell, and to form a cation it must lose those four electrons.

Since each electron has a negative charge, the loss of four electrons gives the titanium cation a net positive charge of 4+.

In its ground state, the electron configuration of neutral titanium is [Ar]3d2 4s2, with two electrons in the 4s orbital and two electrons in the 3d orbital.

When it loses its valence electrons, it becomes a Ti4+ cation with the electron configuration [Ar]3d0 4s0. Thus, the two electrons in the 4s orbital and two electrons in the 3d orbital are lost to form the Ti4+ cation.

To know more about oxidation here

https://brainly.com/question/10344202

#SPJ4

The equation ΔH=−110kJ, ΔS=+40JK −1 at 400K is spontaneous and exothermic.

And the equation ΔH=+40kJ, ΔS=−120JK−1 at 250K is non spontaneous and endothermic.

The spontaneity of a reaction is determined by the sign of the Gibbs free energy change (ΔG), which is related to enthalpy change (ΔH) and entropy change (ΔS) by the equation:

ΔG = ΔH - TΔS

where T is the temperature in Kelvin.

(a) ΔH=−110kJ, ΔS=+40JK−1 at 400K At 400K, ΔG = ΔH - TΔS = -110 kJ - (400 K)(+40 J/K) = -110 kJ - 16 kJ = -126 kJ. Since ΔG is negative, the reaction is spontaneous. The negative ΔH value indicates that the reaction is exothermic, meaning it releases heat.

(b) ΔH=+40kJ, ΔS=−120JK−1 at 250K At 250K, ΔG = ΔH - TΔS = +40 kJ - (250 K)(-120 J/K) = +40 kJ + 30 kJ = +70 kJ. Since ΔG is positive, the reaction is non-spontaneous. The positive ΔH value indicates that the reaction is endothermic, meaning it absorbs heat.

Therefore, the reaction in (a) is spontaneous and exothermic, while the reaction in (b) is non-spontaneous and endothermic

Learn more about spontaneous here:

https://brainly.com/question/5372689

#SPJ4

A mixture is a physical combination of two or more compounds that retain their identities.

A mixture in chemistry is a substance composed of two or more chemical components which are not chemically connected. A mixture is a physical combination of two or more compounds that retain their identities and therefore are mixed as solutions, suspensions, as well as colloids.

Silver                                         element

Ag and fluorine                          mixture

F                                                  element

carbon monoxide                      compound

CO and calcium chloride         mixture

CaCl[tex]_2[/tex]                                          compound

soft drink                                   mixture

Therefore, a mixture is a physical combination of two or more compounds that retain their identities.

To learn more about mixture, here:

https://brainly.com/question/12160179

#SPJ1

The pure liquid that is the best solvent for carbon disulfide is C₆H₆, also known as benzene. Option C is correct.

The best solvent for carbon disulfide (CS₂) would be a liquid that has a similar polarity and intermolecular forces to CS₂. Carbon disulfide is a nonpolar molecule, which means that it is most likely to dissolve in a nonpolar solvent.

Benzene is a nonpolar molecule and has a similar structure and intermolecular forces to CS₂, which makes it a good solvent for nonpolar solutes such as carbon disulfide.

In contrast, the other options (HBr, CH₃OH, H₂O, and NH₃) are polar molecules, which means that they are unlikely to dissolve nonpolar solutes such as CS₂ as effectively as benzene.

To know more about solvent here

https://brainly.com/question/14797683

#SPJ4

--The given question is incomplete, the complete question is

"Which of the following pure liquids is the best solvent for carbon disulfide ? A) HBr B) CH₃OH C) C₆H₆ D) H₂0 E) NH₃"--

The number of atoms of copper present in 3.271×10⁻¹⁹ grams of cupper (II) sulfate is 1234.1 atoms

First, we shall determine the mole of 3.271×10⁻¹⁹ grams of cupper (II) sulfate. Details below:

Mole = mass / molar mass

Mole of CuSO₄ = 3.271×10⁻¹⁹ / 159.55

Mole of CuSO₄ = 2.05×10⁻²¹ mole

Next, we shall determine the mole of copper in the sample. Details below:

1 mole of CuSO₄ contains 1 mole of copper, Cu

Therefore,

2.05×10⁻²¹ mole of CuSO₄ will also contain 2.05×10⁻²¹ mole of copper.

Finally, we shall determine the number of atoms of copper present in the sample. Details below:

From Avogadro's hypothesis,

1 mole of copper = 6.02×10²³ atoms

Therefore,

2.05×10⁻²¹ mole of copper = 2.05×10⁻²¹ × 6.02×10²³

2.05×10⁻²¹ mole of copper = 1234.1 atoms

This, the number of atoms of copper is 1234.1 atoms

Learn more about number of atoms:

brainly.com/question/15488332

#SPJ1

The correct matching is of pair of items is :

Known quantities in the problem --> Often provide useful conversion factors

Unknown quantity --> Will be the solution to the problem

Units of conversion factors --> Must cancel at each step, except for the units needed for the answer

Any units that do not cancel --> Are the units for the unknown quantity

1)The known quantities in the problem often provide useful conversion factors.

2)The unknown quantity will be the solution to the problem.

3)The units of conversion factors must cancel at each step, except for the units needed for the answer.

4)Any units that do not cancel are the units for the unknown quantity.

To know more about conversion factors here

https://brainly.com/question/24597793

#SPJ4

The concentration on which we should pipette out are 4μl.

To recap, the working solutions are 20μg/μl, 2μg/μl, and 0.2μg/μl.

1.

It’s basically the same as the other question. Set it up algebraically:

50μg/μl x = 200 μg

Note the variable x in the equation. You can see easily that x = 4μl (remember to include the units, and recall that units cancel in equations).

So if you pipet 4μl of the 50μg/μl working solution into a centrifuge tube, you’ll have 20μg of BSA in there.

2.

Again, set it up algebraically:

5μg/μl x = 20 μg

Here, x = 4μl again. So again you are pipetting out 4μl, except this time it’s from the 5μg/μl working solution.

3.

I’m sure you can see that there’s a trend going on here (it’s not any special science trend or anything like that, though).

Learn more about concentrations from the link given below.

https://brainly.com/question/10725862

#SPJ4

The relationship between NO2 and O3 concentrations is not straightforward and depends on a variety of factors. It is important to monitor both pollutants and take steps to reduce emissions of both NO2 and VOCs in order to improve air quality and reduce the risk of adverse health effects.

Since the question is incomplete and the graph that ought to be shown is missing, I will look at the relationship between NO2 concentration and ozone concentration in general.

The relationship between nitrogen dioxide (NO2) and ozone (O3) concentrations is complex and depends on a variety of factors such as sunlight, temperature, and the presence of other pollutants.

In general, high levels of NO2 can contribute to the formation of O3 through a complex series of chemical reactions involving other pollutants such as volatile organic compounds (VOCs). This process, known as photochemical smog formation, typically occurs during warm, sunny weather and can lead to elevated levels of O3 in urban and suburban areas.

Learn more about concentration:https://brainly.com/question/10725862

#SPJ1

Bond energy is described as a measure of the bond strength of a chemical bond, and it is the amount of energy required for breaking the atoms involved in a molecular bond into free atoms. The answers for multiple questions are given below.

i)

When bond is formed energy is released and to break a bond energy must be applied.

∆Hsoln is positive , so A < D

Comparing D to B and C , molecules are dissociated in B and molecules are more dissociated in C , so ∆H is order is D < B < C

Therefore, increasing order of enthalpy is A < D < B < C

ii)

Comparing to stage C to D molecules are associated , so heat is released.

Learn more about bond energy from the link given below.

https://brainly.com/question/26141360

#SPJ4

The equipment can be properly calibrated to ensure that the spray application rate is consistent and accurate, which is important for achieving the desired level of control while minimizing waste and avoiding off-target effects.

To prepare for equipment calibration, the following steps should be taken:

Check that all nozzles are the same and of the desired flow rate and pattern. Clean all nozzle and screens. Add clean water to the spray tank and adjust the pressure to the desired level while the pump is operating at normal speed. Make sure water is flowing through the nozzles.

Check the spray patterns from each nozzle. With the sprayer stationary and operating at the desired pressure, hold a measuring cup marked in fluid ounces directly under each nozzle for 1 min.

Calculate the average output (flow rate) by dividing the total amount collected by the number of nozzles. Replace any nozzle whose flow rate is 5% greater or less than the average.

To learn more about Calibration :

https://brainly.com/question/8137688

#SPJ4

Epoxides undergo a ring-opening reaction when attacked by strong nucleophiles, optically inactive starting material gives optically inactive products, this is an SN2 reaction. Option A and B are correct choices.

A) This statement is true. Epoxide ring opening by a strong nucleophile does not involve any chiral center, will give an optically inactive product.

B) This statement is also true. Epoxide ring opening by a strong nucleophile is typically an SN2 reaction, in which the nucleophile attacks the electrophilic carbon of the epoxide from the backside, leading to inversion of configuration at the attacked carbon.

C) This statement is not generally true. The Regio chemistry of epoxide ring opening by a strong nucleophile depends on the nature of the nucleophile, the identity of the substituents on the epoxide, and the reaction conditions.

To know more about the epoxide, here

brainly.com/question/7213902

#SPJ4

--The complete question is, Epoxides undergo a ring-opening reaction when attacked by strong nucleophiles. Select all that describe stereo/regiochemistry of this process.

A) optically inactive starting material gives optically inactive products

B) this is an SN2 reaction

C) for an unsymmetrical epoxide, the nucleophile attacks the less substituted C atom--

The phosphate system can be used as an effective buffer in the pH range of 6.2-8.2, which includes the pKa of 7.2 for the equilibrium of dihydrogen phosphate and hydrogen phosphate.

To calculate the pH of the given mixture of 0.042 M H2PO4- and 0.058 M HPO42-, we can use the Henderson-Hasselbalch equation:

pH = pKa + log([HPO42-]/[H2PO4-])

pH = 7.2 + log(0.058/0.042)

pH = 7.34

Therefore, the pH of the mixture is 7.34.

When 1.0 mL of 10.0 M NaOH is added to 1.0 L of the buffer prepared above, we can use the equation for the reaction between NaOH and H2PO4-: NaOH + H2PO4- → NaHPO4 + H2O

The initial moles of H2PO4- in 1.0 L of the buffer are:

moles H2PO4- = 0.042 M × 1.0 L = 0.042 mol

Adding 1.0 mL of 10.0 M NaOH adds 0.01 mol of NaOH to the buffer solution. Assuming that all of the added NaOH reacts with H2PO4-, the final moles of H2PO4- and HPO42- can be calculated as follows:

moles H2PO4- = 0.042 mol - 0.01 mol = 0.032 mol

moles HPO42- = 0.058 mol + 0.01 mol = 0.068 mol

Using the Henderson-Hasselbalch equation with the new concentrations of H2PO4- and HPO42-, we can calculate the final pH: pH = pKa + log([HPO42-]/[H2PO4-])

pH = 7.2 + log(0.068/0.032)

pH = 7.76

Therefore, the final pH of the buffer after the addition of NaOH is 7.76.

When 1.0 mL of 10.0 M NaOH is added to 1.0 L of pure water at pH 7.0, we can use the equation for the reaction between NaOH and water:

NaOH + H2O → Na+ + OH- + H2O

The initial concentration of OH- can be calculated from the concentration of NaOH: [OH-] = 10.0 M × 1.0 mL / 1000 mL = 0.01 M

The initial concentration of H+ in the water is:

[H+] = 10^-7.0 = 1.0 × 10^-7 M

Assuming that all of the added NaOH dissociates completely, the final concentration of OH- can be calculated as:

[OH-] = 0.01 M + 10.0 M × 1.0 mL / 1000 mL = 0.100 M

The final concentration of H+ can be calculated from the equation for the ion product of water:

[H+][OH-] = 1.0 × 10^-14

[H+] = 1.0 × 10^-14 / 0.100 M = 1.0 × 10^-13 M

Therefore, the final pH of the water after adding NaOH is 13.0.

To learn more about  Henderson-Hasselbalch, visit here

https://brainly.com/question/13423434

#SPJ4

3.30 moles of tetra phosphorous decaoxide (P4O10) will form when 3.30 moles of P₄ react with oxygen gas.

The balanced equation for the reaction between P4 and O2 is:

P₄ + 5O₂ → P₄O₁₀

According to the equation, 1 mole of P₄ reacts with 5 moles of O₂ to produce 1 mole of P₄O₁₀. Therefore, the number of moles of P₄O₁₀ formed is directly proportional to the number of moles of P₄ consumed in the reaction.

If 1 mole of P₄ produces 1 mole of P₄O₁₀, then 3.30 moles of P₄ will produce:

3.30 moles P₄ x (1 mole P₄O₁₀ / 1 mole P₄) = 3.30 moles P₄O₁₀

Therefore, 3.30 moles of tetra phosphorous decaoxide (P₄O₁₀) will form when 3.30 moles of P₄ react with oxygen gas.

To know more about moles here

https://brainly.com/question/26416088

#SPJ4

The side chain of the amino acid glycine is made up of hydrogen. The carboxyl group is deprotonated and negatively charged at basic pH (pH=12)

Organic substances known as amino acids have both amino and carboxylic acid functional groups. Alpha-amino acids, which make up proteins, are by far the most significant of the hundreds of amino acids found in nature. In the genetic code, only 22 alpha amino acids are present.

Body protein as well as other vital nitrogen-containing substances including creatine, peptide hormones, and some neurotransmitters cannot be produced without amino acids. Although allowances are expressed in terms of protein, amino acids are a biological necessity.

To know about glycine

https://brainly.com/question/29029864

#SPJ4

If carbon makes up 52 g of a compound's mass, then there are 100 g of the compound and 52 g of carbon.

The percentage of a solution's mass that is made up of solutes is known as the mass percent. This percentage is measured in relation to the total mass of the solution.

A concentration or a component in a certain mixture can be expressed as mass percent. The mass percentage that indicates the mass of solute contained in a given mass of solution can be used to characterize the composition of the solution. In terms of mass or moles, the solute's concentration is expressed.

Each element must have an equal amount of atoms, which must be an integer ratio. If carbon makes up 52 g of a compound's mass, then there are 100 g of the compound and 52 g of carbon.

The mass percentage of each element is converted to moles using the mass formula mass / molar mass

To learn more about mass percent refer to:

https://brainly.com/question/26150306

#SPJ4

Option d is the correct solution to this question here. The temperature is decreasing.

Standard sets of circumstances for experimental measurements are established at standard pressures and temperatures to enable comparisons between various sets of data.

Ice melting is a physical transformation rather than a chemical reaction. The addition of heat energy causes the phase of ice to transition from solid to liquid during melting. However, there is no chemical reaction taking place while it is melting, so the molecular composition remains unchanged.

NIST employs a 20 °C (293.15 K, 68 °F) temperature and a 1 atm absolute pressure (14.696 psi, 101.325 kPa). This standard is also known as normal pressure and temperature (abbreviated as NTP).

Learn more about chemical reaction here brainly.com/question/29762834

#SPJ4

The electrophilic nitration of benzoic acid involves the attack of the nitronium ion ([NO2]+) on the benzene ring of the benzoic acid. The intermediate formed is a positively charged arenium ion, which can resonate between different resonance forms.

One of the resonance forms of the intermediate cation is shown below:

   O                        O

  //                        //

 /C+           <----->     /C

 \                          \

  \                          O-

In this resonance form, the positive charge is delocalized over the carbon atom and the adjacent oxygen atom. The resulting resonance hybrid is stabilized by the delocalization of the positive charge over the ring, which lowers the overall energy of the system.

The nitronium ion can attack at the meta position, which leads to the formation of 1,3-nitrobenzoic acid. The attack at the ortho or para positions would lead to the formation of other isomeric products.

The reason for the selective formation of 1,3-nitrobenzoic acid is due to the resonance stabilization of the intermediate cation. The meta position is less hindered than the ortho and para positions, and the resonance form shown above places the positive charge at the meta position. Therefore, the attack of the nitronium ion at the meta position is favored over the other positions. Additionally, the resonance form shown above places the negative charge of the carboxylate group at the para position, which makes it less favorable for the nitronium ion to attack at this position.

Overall, the resonance stabilization of the intermediate cation favors the selective formation of 1,3-nitrobenzoic acid in the electrophilic nitration of benzoic acid.

For more questions on electrophillic nitration-

brainly.com/question/14803468

#SPJ4  

Answer: A (acid is a proton donor)

Explanation:

Bronsted-Lowry Definition

The value of Kp for the given reaction is 100.4

The equilibrium constant expression (Kp) for the given reaction is:

Kp = (P_SO₃)² / (P_SO₂)² × (P_O₂)

where P is the partial pressure of the gas in atm.

We can use the given information to calculate the partial pressures of each gas at equilibrium.

The initial pressure of each gas is 1.00 atm (since each mole of gas occupies the same volume, and the total volume is 1.00 L).

At equilibrium, each mole of SO₂ that reacts produces 1 mole of SO₃. Therefore, the partial pressure of SO₃ at equilibrium is:

P_SO₃ = 0.919 mol / 1.00 L = 0.919 atm

Since two moles of SO₂ react for every one mole of O₂, the partial pressure of SO₂ at equilibrium is:

P_SO₂ = (1.00 mol - 0.919 mol) / 1.00 L = 0.081 atm

Partial pressure of O2 at equilibrium is:

P_O₂ = (1.00 mol - 0.919 mol) / 1.00 L = 0.081 atm

Now we can substitute these values into the equilibrium constant expression:

Kp = (0.919)² / (0.081)² × (0.081) = 100.4

Therefore, the value of Kp for the given reaction is 100.4 (with no units, since the units cancel out).

To know more about Kp here

https://brainly.com/question/30550192

#SPJ4

Answer:

NO2

Explanation:

the molar mass of oxygen = 138.06 x 0.695 = 95.9517

=> 95.9517/16 = 6

the molar mass of nitrogen = 138.06 x 0.305 = 42.1083

=> 42.1083 / 14 = 3

So there are 3 N and 6 O => N3O6 which is simplified empirically as NO2

A. There are two amide functional groups are present in vancomycin.

B. In phenol OH groups are bonded to SP³ hybridized carbon atoms and which are bonded to SP² hybridized carbons.

Phenol is an aromatic organic compound. They have molecular formula C₆H₅OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group bonded to a hydroxy group.

The OH group is attached to the sp2 hybridized carbon of an aromatic ring in phenols.

C. Vancomycin is a very water-soluble drug.

D. Alcohols, amines (primary and secondary), carboxylic acids, and amides are the four pure functional groups capable of hydrogen bonding (primary and secondary).

To learn more about the phenol, follow the link;

https://brainly.com/question/10361409

#SPJ9

The IUPAC name of the following structural formula CH3CH OH−CH3 is propan-2-ol.

What is the structural formula?

To know more about structural formula, click the link given below:

https://brainly.com/question/14611418

#SPJ1

The cations can be identified by using various test, that are explained in the below section, Cations such as Na+, Ca2+, Cr3+, Fe3+, Al3+ and many other cation's test are explained below.

Na+ produces yellow flames in flame test. So it confirms the presence of Na+ ion.

If we add NaOH in sample and it produces vapor and turns red litmus, then NH4+ is present. But Here there is no change in litmus. So NH4+ ion CANNOT be present.

The addition of HCl does NOT produces white precipitate indicates that Ag+ CANNOT be present there. When we add HCl in Ag+ , a white precipitate of AgCl is formed.

The addition of buffered NH/NH3 to a portion of the solution produces a precipitate. Cr3+ , Fe3+ , Al3+ produces precipitate in addition of NH/NH3 buffer. So Cr3+ , Fe3+ , Al3+ CAN be present there but further test can confirm it.

Ammonium oxalate produces white precipitate in presence of calcium ion. So Ca2+ must be present there.

The addition of a strong base will precipitate Mg2+ and Ni2+ ion if they are present and Zn2+ forms soluble compound . But here they do not formed precipitate hence Mg2+ and Ni2+ CANNOT be Present there but Zn2+ CAN be present there , we need further tests to confirm Zn2+ ion.

To learn more about flame test check the link below:

https://brainly.com/question/26873482

#SPJ4

A) pH = 9.44, pOH = 4.56, Percentage protonation = [codeine-H+] / [codeine-H+] + [codeine] = 0.72%

B)pH = pKa + log([codeine]/[codeine-H+]) = 10.09, pOH = 3.91, Percentage protonation = [codeine-H+] / [codeine-H+] + [codeine] = 0.17%

C)pH = 8.21, pOH = 5.79, Percentage protonation = [codeine-H+] / [codeine-H+] + [codeine] = 0.01%

The pKa value given is for the conjugate acid of codeine which is codeine-H+. We can use the pKa value to determine the Ka value for codeine-H+ and then use the Ka value to determine the concentrations of codeine-H+ and codeine in solution.

(a) For 0.0073 M codeine in water, we can assume that the concentration of codeine-H+ is very small and can be neglected. The Ka value can be determined from the pKa as follows:

pKa = -log(Ka)

8.21 = -log(Ka)

Ka = 7.94 x 10^-9

To determine the concentration of codeine-H+, we can use the equation for the dissociation of codeine-H+:

Ka = [H+][codeine-]/[codeine-H+]

Let x be the concentration of codeine-H+ that dissociates. Then:

7.94 x 10^-9 = x^2 / (0.0073 - x)

Solving for x gives x = 5.29 x 10^-5 M

Therefore, the concentration of codeine-H+ is 5.29 x 10^-5 M and the concentration of codeine is 0.0073 M. Since codeine is a weak base, we can assume that it does not significantly affect the pH of the solution.

(b) Since the concentration of codeine is greater than the concentration of codeine-H+, we can assume that the pH will be determined by the concentration of codeine-H+.

Let x be the concentration of codeine-H+. Then:

Ka = [H+][codeine-]/[codeine-H+]

7.94 x 10^-9 = x^2 / (0.1 - x)

Solving for x gives x = 2.08 x 10^-5 M

(c) Similar to (b), we can assume that the pH will be determined by the concentration of codeine-H+.

Let x be the concentration of codeine-H+. Then:

Ka = [H+][codeine-]/[codeine-H+]

7.94 x 10^-9 = x^2 / (0.01 - x)

Solving for x gives x = 2.21 x 10^-5 M

(d) Similar to (a), we can assume that the concentration of codeine-H+ is very small and can be neglected.

To know more about Percentage protonation here

https://brainly.com/question/24877689

#SPJ4

Therefore, the actual yield of iron in moles is 0.351 mol, the theoretical yield of iron in moles is 0.572 mol, and the percent yield is 61.31%.

In chemistry, a mole (mol) is a unit of measurement used to express the amount of a substance. It is defined as the amount of a substance that contains the same number of entities (such as atoms, molecules, or ions) as there are atoms in 12 grams of pure carbon-12. Moles are used to convert between the mass of a substance and the number of entities it contains, as well as to calculate the stoichiometry of chemical reactions. For example, the mass of a substance can be converted to moles by dividing the mass by its molar mass (the mass of one mole of the substance), which allows for the comparison of different substances on a per-mole basis. Similarly, the number of entities in a substance can be converted to moles by dividing the number by Avogadro's number.

Here,

To determine the theoretical yield of iron in moles, we first need to use the balanced chemical equation to calculate the moles of Fe produced from 0.286 mol of Fe2O3:

1 mol Fe2O3 produces 2 mol Fe (from the balanced equation)

Therefore, 0.286 mol Fe2O3 produces (2/1) x 0.286 mol Fe = 0.572 mol Fe (theoretical yield)

The actual yield of Fe is given as 19.6 g, so we need to convert this to moles using the molar mass of Fe:

molar mass of Fe = 55.845 g/mol

moles of Fe = 19.6 g / 55.845 g/mol = 0.351 mol (actual yield)

The percent yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100:

percent yield = (actual yield / theoretical yield) x 100%

percent yield = (0.351 mol / 0.572 mol) x 100% = 61.31%

To know more about moles,

https://brainly.com/question/30373566

#SPJ1