Is the mass of one mole of N2 greater than, less than, orequal to the mass of one mole of O2?

Q: Calculate the number of atoms in 39.4g gold. Molar mass of gold is 197 g/mole.

A: The formula for the number of moles is:

Q: Why is it necessary to use a small diameter, thin-walled capillary for holding the sample in the…

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Q: How many hydrogen atoms are present in 722.6 g of sucrose (C12H22011)? (Molar mass of carbon =…

A: Avogadro’s law, a statement that under the same conditions of temperature and pressure, equal…

Q: Why is half frozen fruit punch always sweeter than completely melted fruit punch?

A: The sweetness depends on the concentration of the sugar.One of the main constituents of fruit is…

Q: Consider the dissolution of CaCI2: CaCl2(s) Ca (aq) + 2CI (aq) AH = -81.5 kJ/mol A 15.0-g sample of…

A: Given compound is --> CaCl2  Amount of substance = 135 grams Amount of compound = 15 grams Atomic…

Q: The temperature, at which the root mean square velocity of hydrogen molecules equals their escape…

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Q: If no molecule in a body can escape, would body have any odor?

A: The odour is due to molecular diffusion, hence if the molecule could escape, the body will have…

Q: Do you find the idea that you are made of recycled atoms disturbing? Why or why not?

A: We are made of atoms that were formed on other starts and distributed across the universe.

Q: The mass of a gas molecule can be computed from its specific heat at constant volume cV. (Note that…

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Q: Do 10 grams of oxygen atoms and 10 grams of iron atoms contain the same number of particles?

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Q: Two safety pins, identical except that one is latched and one is unlatched, are placed in identical…

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Q: Consider air at P = 1.00 atm. The average molecular mass of air is approximately 29 u (atomic unit).…

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Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741 Torr. the…

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Q: Calculate the total molecular translational energy at 25°C and 1.0 atm for (a) 1.00 mol of O2; (b)…

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Q: Estimate the time needed for a glycine molecule (see Table 13 – 4 in the textbook) to diffuse a…

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Q: Nine moles of sulfur dioxide, SO2, would consist of how many molecules?

A: Write the given values of this problem. Moles of sulfur dioxide=9

Q: A substance that heats up relatively quickly has a O low specific heat. many strong molecular…

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Q: find the density of air at 0°c and 1.013 x10^5 Pa. One mole of air may be assumed to be 79% nitrogen…

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Q: Suppose that the root-mean-square velocity v-ms of water molecules (molecular mass is equal to 18.0…

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Q: Consider air at P = 1.00 atm. The average molecular mass of air is approximately 29 u (atomic unit).…

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Q: A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of…

A: Given: In the first case: Volume of the SF6  gas is 5 L. At temperature 250 K. Initial pressure 67…

Q: Why is there a need to constantly stir the metal shots during heating?

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Q: Diffusion always drives molecules from higher concentration to lower concentration. Oa. True O b.…

A: The kinetic energy of the molecules results in random motion, causing diffusion. In this random…

Q: Suppose a sample of helium gas at 45.0 °C sealed in a flask at a pressure of 5.63 atm was found to…

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Q: How does microwave cooking differ from conventional cooking?

A: Given:  micowave cooking and conventional cooking

Q: A simple model for car- bon dioxide consists of

A: from the following relation ω = 2π f and also ω2 =  k/m here  ω = angular frequency f = linear…

Q: Which contains the most moles: 10.0 gg of hydrogen gas, 100 gg of carbon, or 500 gg of lead?

A: Let M be the mass of the element, Mmol be the molar mass of element.Write the expression for the…

Q: What is the mass of 0.6 mole of CO2 (in g)? A) 31 B) 7 C) 26 D) 18 E) 37

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Q: an ideal gas contains 48.18 * 10^23 particles its number of moles is: А. 1 В. З C. 8 D. 2 E. none of…

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Q: How many molecules of carbon dioxide are there in 44g of carbon dioxide?

A: Number of molecules

Q: Calculate the time required for molecules to diffuse in a liquid a distance of 10^(−3) cm. Assume…

A: Distance travelled, s= 10-3 cm or 10-5 mmean free path, λ=10-8 cm or 10-10 mavg velocity of…

Q: The specific latent heat of vaporization of a particular liquid is 2.0 x 10 Jkg, its relative…

A: Given : Specific latent heat of vaporization, LVH  =  2.0x105J/Kg Relative molecular mass  =  30…

Q: At what temperature will 0.654 moles of neon gas occupy 12.30 liters at 1.95 atmospheres? Use the…

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Q: A two-component mixture is made up of components A and B with nA=0.11ng. If a small change in…

A: In the given question, We have to calculate the value of change μB.

Q: Methane, CH4, is the simplest hydrocarbon molecule and in its natural state is a gaseous substance.…

A: Mass of methane = 64 g  Molecular mass of methane = (12 +4) = 16 g  Number of moles of methane =…

Q: How many molecules are in 0.044 kg of carbon dioxide, CO2? (atomic masses: C = 12 u; O = 16 u)

A: ...

Q: true or false ? is Oxygen is an example of matter .

A: Matter is made from atoms. Every substance has a unique number of protons, neutrons, and electrons.…

Q: What is the mass of 0.7 mole of CO2 (in g)? A) 31 B) 7 C) 26 D) 18 E) 37

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Q: If no molecules in a body could escape, would the body have any odor?

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Q: sample of 1 mol Ar and 1 mol Kr gas is at 298 O the same average kinetic energy O the same rate of…

A: Kinetic theory of gases relates the macroscopic property of the gas, like Temperature, Pressure,…

Q: What is mole?

A: Mole is the unit of amount of substance. It consists of Avogadro number of particles. Avogadro…

Q: Find the density of the air at 0°C and 1.013 x 105 Pa. One mole of air may be assumed to be 79%…

A: Given data: The percentage composition of nitrogen in in one mole of air, %nitrogen=79%. The…

Q: At which temperature could water contain the most dissolved gas at a pressure of 101.3 kPa?

A: For gaseous solutes, The solubility decreases with increase in temperature.

Q: how many joules would be absorbed for the water?

A: Onc Calorie is equal to 4.2 Joules Here water needs 5000 Calories to get heated from 20 degrees…

Q: A technique that separates mixtures on the basis of theirdistribution between a stationary liquid…

A: Answer Chromatography is a laboratory technique for the separation of a mixture. The mixture is…