a measure of the quantity of matter in an object is the definition of mass.
What is mass of an object?An object's mass is just a count of its atoms. The kilogram is the fundamental unit of mass measurement. It is the characteristic of matter that gauges its resistance to acceleration.
What is matter?Any substance with mass and volume is considered matter in classical physics and generic chemistry.
What is atom?An atom is a unit of matter that specifically characterizes a chemical element. One or more negatively charged electrons surround the core nucleus of an atom, which is made up of all of them. One or more protons and neutrons, which are comparatively heavy particles, can be found in the positively charged nucleus.
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7CH4 + 2O2 → CO2 + 2H2O. The products in this reaction include:
Select one:
a. methane and oxygen.
b. carbon dioxide and water.
c. carbon dioxide and oxygen.
d. methane and water.
In the given equation , 7CH4 + 2O2 → CO2 + 2H2O. The products in this reaction include carbon dioxide and water.
Does carbon dioxide pose a danger to people?Numerous health implications from CO2 exposure might be experienced. These symptoms could include a coma, hypoxia, convulsions, shivering, a tingling or pins-and-needles feel, headaches, disorientation, restlessness, a tingle or pins-and-needles sensation, and trouble breathing.
What is the aim of carbon dioxide?As a refrigerant, carbon dioxide is used in fire extinguishers, to blow life jackets and rafts, burst coal, foam rubber and plastics, seedlings in greenhouses, immobilize creatures before slaughter, and flavor carbonated drinks.
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Which will be the best leaving group for a nucleophilic reaction?
Alkyl bromides, alkyl iodides, and alkyl chlorides are all typical reactants in laboratory nucleophilic substitution processes. The best leaving group among the four common halides (F, Cl, Br, and I) is iodide, which is the least basic of them all.
Do Sn1 or Sn2 require an excellent leaving group?
Sn1 and Sn2: Since both sn1 and sn2 reactions need strong leaving groups, the type of leaving group has no effect on the reaction. A extremely weak leaving group, however, might stop either reaction from happening at all.
What is nucleophilic substitution with leaving group ability?
When an electrophile that is positively charged attacks a nucleophile that is rich in electrons, the leaving group from the nucleophile is replaced.
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convert the following to basic si units: 5.7×104 m^2 to si
The specified unit, 5.7 x 104 m2, is already in SI units (International System of Units). The SI unit for area is square meters (m2), which is used in the conversion. As a result.
no additional conversion is required. 5.7 x 104 m2 is the answer. The International System of Units, or SI, is the standard unit system used in science and engineering. SI's purpose is to offer a consistent and coherent unit system that can be used to perform accurate measurements and comparisons across disciplines and nations. SI's fundamental units are the meter, kilogram, second, mole, ampere, kelvin, and candela. Scientists and engineers can properly measure and compare physical quantities such as length, mass, time, temperature, and others by utilizing these fundamental units and their derivatives. When working in these sectors, it is critical to be conversant with the SI system and its units.
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In general, real gases behave most ideally at ____ pressures and ____ temperatures.
In general, real gases behave most ideally at high pressures and low temperatures.
The characteristics and rules that the gas's molecules follow determine how the molecules behave. In comparison to the distribution of molecules in liquids and solids, the distribution of molecules in gases is extremely different. The behavior of gas molecules is governed by three gas laws.
According to Boyle's Law, gas volume grows as pressure lowers. According to Charles' Law, a gas expands in volume as its temperature rises. Additionally, Avogadro's Law states that as gas concentration rises, so does its volume.
At higher temperatures and lower pressures, a gas often behaves more like an ideal gas because the intermolecular potential energy (P.E.) becomes less relevant in comparison to the particle kinetic energy.
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what is the name of the chemical bond between amino acids?
A peptide bond also called a eupeptide bond is a chemical bond by joining the carboxyl group of one amino acid to the amino group of another.
what is the name of the chemical bond between amino acids?Peptide bonds are chemical covalent bonds joining one amino acid to the other, Within a protein, multiple amino acids are related together by peptide bonds, thereby forming a long chain. Peptide bonds are devised by a biochemical reaction that takes out a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.
An Introduction to Chemical Bonds and Protein form cysteine is the sole amino acid whose side chain can form covalent bonds, a chemical bond by linking the carboxyl group of one amino acid to the amino group of another.
So we can conclude that A chemical bond is a lasting appeal between atoms or ions that authorized the formation of molecules and crystals.
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determine the fraction of the total mass of an atom for protons, neutrons, and electrons
Protons, neutrons, and electrons make up around 0.999 of an atom's total mass for protons and neutrons, and 0.0005 of an atom's total mass for electrons.
Protons, neutrons, and electrons make up an atom's total mass. These particles' relative atomic masses may be used to determine what percentage of an atom's total mass corresponds to each one of them. A proton's relative atomic mass is one atomic mass unit (amu), a neutron's relative atomic mass is roughly one amu, and an electron's relative atomic mass is around 0.0005 amu. For instance, in a hydrogen atom with one proton and one electron, the proton's mass fraction would be around 99.999% of the total mass while the electron's mass fraction would be roughly 0.0001%.
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you need 3.6 x 1024 molecules of oxalic acid (h2c2o4). how many grams of the acid should you weigh out in the laboratory?
you need 3.6 x 10 to the power 24 molecules of oxalic acid (h2c2o4). Grams of the acid should you weigh out in the laboratory,
3.6 * 10 to the power 24 molecules----->1 mol / 6.022 * 10 to the power 23 molecules -----> 90.04 g H2C2O4 / 1 mol = 540g =5.4 * 10 to the power 2 g
We are informed that we possess 3.6 x 10–24 molecules of oxalic acid, and we are afterwards asked how many grammes of the acid we should weigh out. Okay, then we'll multiply that by the inverse of Gag Avogadro's number, which we'll write a little bit larger, to find the number of molecules in a mole, and then we'll multiply that by the molar mass of oxalic acid, which we calculated before. That would be 540 grams according to the calculation I just did: 3.6 times 10 to the 24 times 90.03 divided by 6.022 times 10 to the twenty-third.
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If 0. 700 moles Ag is reacted with 10. 0 g S, is sulfur or aluminum the limiting reactant?
If 0. 700 moles Ag is reacted with 10. 0 g S. The limiting reactant is Sulphur.
To know the limiting reactant first we should calculate the moles of each reactant.
Moles = Mass/ Mass molar
Moles S = 10 gram / 32 g/ mole
Moles S = 0.3125 moles
the balance reaction will be
2 Ag + s ⇒ Ag₂S
According to the stoichiometry from the reaction 1 moles of sulphur need to react with 2 moles of Ag to produce Ag₂S
Thus 0.3125 moles of S will require= 2/1 x0.3125 = 0.625 moles Ag
so, the Ag excess and the limiting reactant will be Sulphur.
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Select all intermolecular forces that contribute to creating a solution of KBr in H2O.a. London Dispersionb. H-bondingc. Ion-dipoled. Dipole-Dipole
Ion-dipole and hydrogen bonding are the intermolecular interactions involved in the formation of a KBr solution in water.
Hydrogen bonding is a type of attractive interaction between a hydrogen atom that is covalently bonded to an electronegative atom (such as nitrogen, oxygen, or fluorine) and an electronegative atom in another molecule or ion. This bond is much stronger than a typical van der Waals interaction and results in a higher boiling and melting point for compounds that can hydrogen bond.
While H2O is a polar molecule with a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom, KBr is an ionic compound made up of K+ ions and Br- ions. The negative O- atoms of H2O and the positive K+ ions form the ion-dipole force. Hydrogen bonding occurs between the hydrogen atoms of H2O and the negative Br- ions. These pressures aid in the homogenous solution formation as KBr is dissolved in water.
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is it possible to have three simultaneous processes in execution? please give one example to support your answer.
Yes, it is possible to have three simultaneous processes in execution.
In computing, a process is an instance of a computer program that is being executed by one or many threads. Every process has its own memory space, and it runs independently of other processes. The operating system schedules different processes to run at the same time, and this is known as multitasking.
For example, a person might have multiple programs running on their computer, such as a web browser, a text editor, and a media player. All three of these programs are separate processes that are executing simultaneously.
The operating system divides the processing time among these processes so that each one has a chance to run, and the user can interact with all of them at the same time. This is what allows a user to switch between multiple tasks seamlessly, and it gives the illusion of three processes running at the same time.
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Sarah and Maria were making solutions in science class. They dissolved some sugar in warm water.
"We can get the sugar back," said Sarah.
The girls boiled the solution and sure enough, the water evaporated and the sugar was left behind in the beaker. The girls continued to heat the sugar until it
tumed brown and finally black Water drops collected on the sides of the beaker.
"Let's try to get the sugar back again!" said Maria
What would you tell the girls?
A They have to add some water to the black substance and stir it until it dissolves again.
B They must collect all the water on the sides of the beaker and mix it with the black substance.
C Sugar is carbon, hydrogen, and oxygen. They must mix the three things together.
DThe black substance is carbon. The sugar has changed into something new.
D) The black substance is carbon. The sugar has changed into something new.
What is meant by solution in chemistry?In chemistry, solution is special type of homogeneous mixture composed of two / more substances. In such mixture, solute is a substance dissolved in another substance which known as a solvent.
Solution is a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called limit of solubility. Common examples are of solutions are: sugar in water and salt in water solutions, soda water. In solution, all the components appear as a single phase.
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Can someone help me please ill give you 50 points
On erosion of Earth's surfaces, the letter of terms and phrase that complete the sentences are:
B, GravityD, MudflowA, TillsC, RillsD, StreamsErosionRockgravityice watermass movement mudflowslump rock slidesglacierscirquesWhat is a Cirques?Cirques are bowl-shaped, amphitheater-like depressions carved by glaciers into high-elevation mountains and valley sidewalls. As gravity pulls the glaciers downslope, they frequently flow up and over the cirque's lip. Once the glaciers recede, lakes (called tarns) frequently form in these depressions.
Cirques are areas of snow accumulation, so the direction in which they point (their aspect) can reveal information about the past links between climate and glacier growth.
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Interpret the following equation in terms of relative numbers of representative particles, number of moles, and masses of reactants and products.
2K(s)+2H2O(l)â2KOH(aq)+H2(g)
The following equation in terms of relative numbers of representative particles, number of moles, and masses of atoms and products is
78.2g K + 36.0 g [tex]H_2O[/tex] [tex]\rightarrow[/tex] 112.2 g KOH + 2.0 g [tex]H_2[/tex].
The atom is the smallest piece of stuff that can be divided without producing charged particles. Additionally, it is the tiniest material with characteristics similar to chemical elements. As a result, the atom serves as the fundamental component of chemistry. Examine different electron arrangements in the electron shells that protect an atom's atomic nucleus. An atom is primarily made of space. The rest is made up of a positively charged nucleus made up of protons and neutrons that is surrounded by a cloud of negatively charged electrons. The nucleus is small and dense in comparison to electrons, which are the lightest charged particles in nature. Electrons are pulled to any positive charge due to the electric forces that bind them to the nucleus of atoms.
[tex]2 \times6.02 \times 10^{23}[/tex] atoms K + [tex]6.02 \times 10^{23}[/tex] atoms [tex]H_2O[/tex] [tex]\rightarrow[/tex] [tex]2 \times 6.02 \times 10^{23}[/tex] atoms KOH + [tex]6.02 \times 10^{23}[/tex] atoms [tex]H_2[/tex]
2 mol K + 2 mol [tex]H_2[/tex] [tex]\rightarrow[/tex] 2 mole KOH + 1 mol [tex]H_2[/tex]
78.2g K + 36.0 g [tex]H_2O[/tex] [tex]\rightarrow[/tex] 112.2 g KOH + 2.0 g [tex]H_2[/tex]
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An ionic bond is an attraction between oppositely charged.a. Trueb. False
TRUE: opposing charges attract each other, and this force of attraction is known as the ionic bond. 16. In the diagram, a sodium ion is attracted by a link to one chloride ion and by forces to three other chloride ions.
The main interaction in ionic compounds is ionic bonding, a type of chemical bonding that involves the electrostatic attraction between two atoms or ions with dramatically differing electronegativities.
In a compound, atoms with opposing charges are held together by an electrostatic force called an ionic bond. A metal can create several cations with various charges if it is in the d, f, or lower p-block. Two cations can combine to produce a compound through an ionic connection.
The electrostatic attraction between a negatively charged non-metal ion and a positively charged metal ion is known as an ionic bond. Metals lose electrons to become stable, which causes them to create positive ions.
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(PLS HELP ASAP!!!) Soda lime absorbs carbon dioxide, A plant in a container with a dish of soda lime begins to turn yellow and dies, even if it gets lots of light, water and minerals.
Question: What does this tell you about photosynthesis?
If soda lime absorbs carbon dioxide, and a plant in a container with a dish of soda lime begins to turn yellow and dies, even if it gets lots of light, water and minerals, then it indicates photosynthesis that this process depends on the carbon dioxide saturation.
What is the process of photosynthesis?The process of photosynthesis is a metabolic pathway in plants and algae that generates glucose in presence of oxygen and sunlight, which generates carbon dioxide as byproduct.
Therefore, with this data, we can see that the process of photosynthesis can be inhibited by high carbon dioxide.
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Common bra i a copper and zinc alloy containing 37. 0% zinc by ma and having a denity of 8. 48 g/cm3. A fitting compoed of common bra ha a total volume of 129. 5 cm3. How many atom of copper doe the fitting contain?
The number of atom of copper is 6.197 x10²⁴ .
We must first determine the overall mass of the brass.
Equation used:
Density = mass/ volume
8.48 g/cm³ = Mass/ 129. 5 cm³
Mass = 8.48 g/cm³ x 129. 5 cm³
Total Mass of brass = 1038.8 g
The mass of copper must now be calculated.
According to the information provided, 37 g of zinc are present in 100 g of combination, or 37% zinc by mass.
Mass of zinc = 37 g
Total mass of mixture (brass) = 100 g
Mass of copper = 100 - 37 = 63 g
Mass of cooper in the brass = 63/ 100 x 1038.8 g =654.44 g
Now we have mass of cooper we can calculate the moles of copper
Moles of cooper = mass/ mass molar
Moles of cooper = 654.44 g / 63.55 g/moles = 10.29 moles.
We now need to determine how many atoms there are in copper.
Since there are 6.02 x 10²² atoms of copper in 1 mole of copper.
the total moles of cooper = 10.29 moles x 6.02 x 10²² atoms = 6.197 x10²⁴
Therefore, there are a total of 6.197 x10²⁴ atom of copper in there.
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if the hydrogenation of the compound gave n-octane, what is the structure of the unknown compound?
If the hydrogenation of an unknown compound gave n-octane, it can be inferred that the structure of the unknown compound was an alkene or a conjugated diene.
The hydrogenation of a compound refers to the addition of hydrogen atoms to a molecule, typically catalyzed by a metal catalyst. The product of this reaction is typically a more reduced form of the original compound.
If the hydrogenation of an unknown compound gave n-octane, it can be inferred that the structure of the unknown compound was an alkene or a conjugated diene. Alkenes and conjugated dienes can undergo hydrogenation reactions to give primary and secondary alkanes, respectively.
The structure of the unknown compound cannot be determined with certainty based on this information alone, as it depends on the specific alkene or diene that was hydrogenated. Further analysis and characterization would be needed to determine the structure of the unknown compound with certainty.
It is important to note that hydrogenation reactions are often selective and can produce mixtures of products, depending on the conditions used. The structure of the unknown compound would also be influenced by the choice of catalyst and reaction conditions used.
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Why phosphorus is a metal?
Phosphorus is not a metal; it is a non-metal element. It is a highly reactive element found in the form of white, waxy solids.
What is non-metal?
Non-metal is a type of element that does not have the properties of a metal. Non-metals are generally not malleable or ductile, they are not good conductors of electricity or heat and they are not shiny or reflective. They are usually brittle and have low melting and boiling points. Non-metals are solids at room temperature, and they can be either crystalline or non-crystalline. Examples of non-metals include carbon, nitrogen, oxygen, sulfur, phosphorus, boron, chlorine, iodine, and fluorine. Non-metals can be grouped into two categories: organic and inorganic. Organic non-metals are produced by living organisms, while inorganic non-metals are found in the environment.
Therefore, Phosphorus is not a metal; it is a non-metal element.
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when should lab participants look at the safety data sheet (sds) of a substance? select one: only if the substance is perceived to be dangerous before using the substance after completing work with the substance while working with the substance in lab
Lab participants should always look at the safety data sheet (SDS) of a substance before using the substance.
The correct option is B.
What is a safety data sheet (SDS) of substances?The safety data sheet (SDS) contains details about the physical, physiological, and environmental dangers of each chemical, as well as information about how to handle, store, and transport each chemical safely.
The information in a safety data sheet is for:
Identification of the supplier and the product.Physical (fire and reactivity) and health risks are present.Actions you can do to ensure your safety at work, to lessen or prevent exposure, or in an emergency.Response: suitable reactions in various circumstances (e.g., first-aid, fire, accidental release).
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What mass of uranium contains the same number of atoms as 25. 0 g of potassium (can you the work please)
The number of atoms in a given mass of a substance is determined by its atomic mass, which is the average mass of an atom of that element relative to 1/12 the mass of a carbon-12 atom.
Potassium has an atomic mass of 39.098 g/mol, so 25.0 g of potassium contains 25.0 g / 39.098 g/mol = 639.0 mol of potassium atoms.
Uranium has an atomic mass of 238.0 g/mol, so the mass of uranium that contains the same number of atoms as 25.0 g of potassium is 639.0 mol x 238.0 g/mol = 152,062 g of uranium.
What is the most common isotope of uranium found in nature?The most common isotope of uranium found in nature is uranium-238. It makes up over 99% of naturally occurring uranium and has a half-life of over 4 billion years. It is primarily used as a fuel in nuclear reactors.
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5. How many moles of cadmium chloride can be produced from 45.1 grams of cadmium with excess hydrochloric acid?
Cd(s) + 2 HCl(aq) → CdCl2(aq) + H2(g)
6. How many moles of sulfur could be prepared from 54.1 L of oxygen at STP?
2 H2S(g) + O2(g) → 2 S(s) + 2 H2O(l)
7. Calculate the number of grams of CO2 that are produced by heating 116.4 grams of magnesium carbonate.
MgCO3(s) → MgO(s) + CO2(g)
8. How many moles of silver will be formed when 5.00 mol of copper react with excess silver nitrate?
Cu(s) + 2 AgNO3(aq) → Cu(NO3)2(aq) + 2 Ag(s)
9. Phosphorus reacts with oxygen gas to produce tetraphosphorus decoxide.
4 P(s) + 5 O2(g) → P4O10(s)
If a chemist needs 33.1 grams of P4O10, how many moles of P4 are needed to react with excess oxygen?
10. In the reaction, Al2O3(s) + 6 HCl(aq) → 2 AlCl3(aq) + 3 H2O(l), how many grams of AlCl3 will be produced from 56.1 grams of HCl?
As per the balanced chemical equation of the reaction between cadmium and HCl, one mole of Cd produce one mole of cadmium chloride. Then, 45.1 g or 0.4 moles of Cd will produce 0.4 moles of cadmium chloride.
What is theoretical yield of a reaction?The theoretical yield of a reaction is the amount of product obtained based on the balanced chemical equation of the reaction. However, the actual yield might vary from the the theoretical value.
The given reaction of Cd and HCl shows that, one mole of Cd produce one mole of the product cadmium chloride.
Atomic mass of Cd = 112.4 g/mol
given mass = 45.1 g
no.of moles = 45.1 g/ 112.4 g/mol = 0.4 moles.
It is said that, the number of moles of cadmium chloride from 1 mole is 1. Therefore, 0.4 moles of Cd will give 0.4 moles of cadmium chloride. Using the same way, we can determine the yield of products in any reaction.
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how many grams of al2s3 are formed when 5.00 grams of al is heated with 10.0 grams s?
The grams of the Al₂S₃ are formed when the 5.00 grams of the Al is heated with the 10 g of the S is 13.5 g.
The balance chemical reaction is as follows :
2Al + 3S ---> Al₂S₃
The mass of the Al = 5 g
The moles of the Al = mass / molar mass
= 5 / 26.9
= 0.18 mol
The mass of the S = 10 g
The moles of the S = 10 / 32
= 0.31 mol
2 mol of Al react with 3 mol of S
Moles of S = 3/2 × 0.18
= 0.27 mol
The Al is the limiting reactant .
2 mole of the Al = 1 mol of the Al₂S₃
Moles of the Al₂S₃ = (1/2 ) × 0.18
= 0.09 mol
The mass of the Al₂S₃ = moles × molar mass
= 0.09 × 150
= 13.5 g
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how does the presence of kelp influence water carbon dioxide levels
Kelp, also known as seaweed, is a type of marine algae that plays a role in regulating carbon dioxide levels in the water.
Kelp absorbs carbon dioxide through photosynthesis, which is the process by which plants convert carbon dioxide and water into glucose and oxygen using energy from sunlight. As kelp absorbs carbon dioxide from the water, it helps to reduce the levels of dissolved carbon dioxide in the surrounding environment. Additionally, kelp also releases oxygen into the water as a byproduct of photosynthesis, which can help to increase the levels of dissolved oxygen in the water and support the growth of other marine organisms. This process of carbon dioxide removal by kelp has a positive impact on the surrounding water and helps to maintain a balance of dissolved gases, which is important for the overall health of the aquatic ecosystem.
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A veel of 356cm cubic contain oxygen at a preure of 760mmHg and a temperature of 15 degree Celiu. Auming the volume i contant calculate the temperature to which it mut be raied to give a 2atm
The temperature would have to be raised to approximately 8.64 * n Kelvin.
The temperature to which the volume of oxygen must be raised to give a 2atm pressure can be calculated using the Ideal Gas Law:
PV = nRT
where:
P is the pressure (in atm),
V is the volume (in liters),
n is the number of moles of gas,
R is the gas constant (0.0821 Latm/molK),
T is the temperature (in Kelvin).
Given the initial pressure of 760 mmHg, we can convert it to atmospheres:
760 mmHg * 1 atm / 760 mmHg = 1 atm
And given the initial temperature of 15 degrees Celsius, we can convert it to Kelvin:
15°C + 273.15 = 288.15 K
Rearranging the Ideal Gas Law equation for T and solving for the temperature at 2atm:
T = (PV / nR)
T = (2 atm * 356 cm³) / (n * 0.0821 L * atm / mol * K)
T = (2 atm * 356 cm³ * 1 L / 1000 cm³) / (n * 0.0821 L * atm / mol * K)
T = (2 atm * 0.356 L) / (n * 0.0821 L * atm / mol * K)
T = (0.712 L * atm) / (n * 0.0821 L * atm / mol * K)
T = 8.64 * n K
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The average atmospheric pressure on Mount Everest is 33.7 kilopascals. Express this pressure in millimeters mercury and atmospheres?
Answer: To convert pressure from kilopascals to millimeters mercury, we can use the conversion factor 1 kilopascal = 7.5 mmHg.
So, 33.7 kilopascals = 33.7 * 7.5 mmHg = 251.75 mmHg
To convert pressure from kilopascals to atmospheres, we can use the conversion factor 1 kilopascal = 0.00986923 atm.
So, 33.7 kilopascals = 33.7 * 0.00986923 atm = 0.3316 atm
Therefore, the atmospheric pressure on Mount Everest is 251.75 mmHg = 0.3316 atm.
Explanation:
Ni+3O2 —> 2Ni2O3
how many grams of nickle (iii) oxide is formed if 121.1g of nicklel reacts with 50.7 L of oxygen gas?
The mass in grams of nickel (iii) oxide that is formed if 121.1g of nickel reacts with 50.7 L of oxygen gas is 249.6 g
What mass of nickel (iii) oxide is formed?The mass of nickel (iii) oxide that is formed is determined from the mole ratio of the reaction as given from the equation of the reaction.
Equation of the reaction: Ni +3 O₂ —> 2 Ni₂O₃
The mole ratio of oxygen and nickel (iii) oxide as given by the equation is 3 : 2
The molar mass of nickel (iii) oxide is 165.4 g/mol
The mole of oxygen reaction = 50.7 L/22.4 L/mol
The mass of nickel(iii) oxide produced = 50.7 L/22.4 L/mol * 2/3 * 165.4 g
The mass of nickel(iii) oxide produced = 249.6 grsams
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Rank the following list of aqueous solutions and solvents according to decreasing vapor pressure. The substance with the highest vapor pressure should be placed on top.
The rank of the following list of aqueous solutions and solvents according to decreasing vapor pressure is: 0.050M urea, 0.10M glucose, 0.2M sucrose, pure water
Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. It is a measure of the tendency of a substance to change from liquid to the gaseous state at a given temperature and pressure.
Vapor pressure depends on the temperature and the nature of the substance, and it increases with temperature. For example, the vapor pressure of water at room temperature is much lower than the vapor pressure of alcohol at the same temperature.
The vapor pressure of a substance can also be affected by pressure, with an increase in pressure leading to a decrease in vapor pressure.
Therefore, The rank of the following list of aqueous solutions and solvents according to decreasing vapor pressure is: 0.050M urea, 0.10M glucose, 0.2M sucrose, pure water
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Calculate the freezing point point of a solution containing 6. 0 g of naphthalene (c10h8) in 50. 0 ml of benzene. Benzene has a density of 0. 877 g/cm3 (cm3 = ml). Kf = 5. 12 oc/m for benzene normal freezing point of benzene 5. 5 oc.
The freezing point of a solution containing 6.0 g of naphthalene (C10H8) in 50.0 mL of benzene (density 0.877 g/cm3)
It can be calculated using the equation Kf x m, where Kf is the freezing point depression constant and m is the molality of the solution. The molality of the solution is equal to the number of moles of solute (naphthalene) divided by the kilogram of solvent (benzene).
In this case, the molality of the solution is equal to 0.007 m.
Using the equation Kf x m, the freezing point of the solution is equal to 5.12 oC x 0.007, which is equal to 0.0359 oC. Subtracting this value from the normal freezing point of benzene (5.5 oC) gives us a freezing point of 5.4641 oC for the solution.
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in a particular experiment, 7.9 grams of sulfur trioxide are produced by the reaction of 5.0 grams of oxygen gas with 6.0 grams of sulfur. what is the percent yield of sulfur trioxide in this experiment?
Sulfur dioxide is catalytically oxidized to form sulphur trioxide in stage two. Sulfur trioxide is transformed into sulphuric acid in stage three.
What does the process involve in sulfur trioxide formation?Vanadium oxide serves as the process' catalyst. Stage 1: Preparation and purification of sulphur dioxide. Sulfur dioxide is catalytically oxidized to form sulphur trioxide in stage two. Sulfur trioxide is transformed into sulphuric acid in stage three.
Vanadium oxide serves as the process' catalyst. Three phases make up the contact process: Stage 1: Preparation and purification of sulphur dioxide.
Therefore, 93 is the percent yield of sulfur trioxide in this experiment. In addition to being a reagent in sulfonation reactions, sulphur trioxide is employed to create sulfuric acid.
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introduction of chemical, physical, or biological agents into water
The introduction of physical, chemical, or biological agents into water is known as water pollution.
Water pollution refers to the contamination of water bodies, such as lakes, rivers, oceans, and groundwater, with harmful substances, waste, or pathogens that can cause harm to the environment, wildlife, and human health.
There are various types of water pollution, including chemical pollution, physical pollution, and biological pollution. Chemical pollution can come from a wide range of sources, including industrial discharge, agricultural runoff, and household waste. It can contain harmful substances such as toxic heavy metals, pesticides, and fertilizers that can have negative impacts on the environment and human health.
Physical pollution, on the other hand, can come from sources such as litter and debris, which can harm marine life and birds, and act as a carrier for chemical pollutants. Biological pollution can include pathogens such as bacteria and viruses that can cause waterborne diseases in humans and animals.
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introduction of chemical, physical, or biological agents into water is known as __________.
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