Calculate the average molecular weight of air by mole fraction and mass fraction from its approximate molar composition of 79% N2, 21% O2.

Q: Photosynthesis by land plants leads to the fixation each year of about 1 kg of carbon on the average…

A: P, T and  mass of Carbon are given for which the volume required is to be determined.

Q: e mole fraction of C2H

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Q: What is the molecular weight of a gas that diffuses 1/50th as fast as hydrogen?

A: Given : Unknown gas diffuses 1/50th times than that of hydrogen.

Q: If the partial pressure of N2 is 3.50 x 105 Pa and the partial pressure of Ne is 3.75 x 105 Pa in a…

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Q: What is the value of the compressibility factor of an ideal gas with molar volume that is equal to…

A: Given:  Pressure = 1 atm  Temperature  = 300 K  Molar Volume (Vm) = 0.50 L/mol  R = 0.0821 atm L…

Q: Differentiate between Molecular Diffusion and Molecular Effusion?

A: Diffusion and Effusion are the two different property of the gas. Diffusion is the ability of the…

Q: vessel of volume 24.4 dm3 contains 1.0 mol H2 and 2.5 mol N2 at 298.15 K. Calculate (a) the mole…

A: Given, Volume (V) = 24.4 L Temperature(T) = 298.15 K Moles of N2(n1) = 2.5 mol Moles of H2(n2)  =…

Q: A vessel of volume 22.4 dm3 contains 2.0 mol H2 and 1.0 mol N2 at 273.15 K. Calculate (a) their…

A: (a) According to unit conversion, 1 L is equivalent to 1 dm3. So, 22.4 dm3 is equivalent to 22.4 L.…

Q: 1. A natural gas mixture whose volumetric analysis is 85.8% CH4 (Methane), 13.2% C2H6 (Ethane), 0.9%…

A: Molar mass of CH4 = 16g/mol Molar mass of C2H6 = 30 g/mol Molar mass of CO2 = 44 g/mol Molar mass of…

Q: If the molar composition of dry air is 78% N2, 21% O2 and 1% Ar, calculate the partial pressure of…

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Q: Assuming that air may be treated as a mixture of ideal gases which has a mass composition 23.2%…

A: As per our guidelines we can only solve first question, please post other questions as next…

Q: Describe the fundamental of the diffusion of gases in Dalton’s law?

A: We have to describe the fundamental of the diffusion of gases in Dalton’s law

Q: 5. A vessel of volume 22.4 dm3 contains 2.0 mol H2 and 1.0 mol N2 at 273.15 K. Calculate (a) the…

A: Given,  Volume = V = 22.4 dm3  Moles of H2 = nH2 = 2.0 mole  Moles of N2 = nN2 = 1.0 mole…

Q: Dry air may be considered to consist of 75.53 per cent by mass of nitrogen, N2 and 23.14 per cent by…

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Q: If the partial pressure of N2 is 1.40 x 105 Pa and the partial pressure of Ne is 4.50 x 105 Pa in a…

A: Given: Partial pressure of  N2 = 1.40 x 105 Pa Partial pressure of Ne is 4.50 x 105 Pa

Q: What is the root mean speed in m/s of Kr at 15°C? (write the solution without decimals)

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Q: Why must the diffusion of gases into or within liquids be presented in terms of partial pressures…

A: Diffusion means two or more particles are intermixed with each other. Example: The gases particles…

Q: The total pressure of a gas mixture containing nitrogen is 2atm. If the partial pressure of nitrogen…

A: The total pressure of a gas mixture containing nitrogen is = 2 atm The partial pressure of nitrogen…

Q: At s.t.p the volume of a sample of air is 5.00 dm3 . If the mole fraction oxygen gas in the sample…

A: Given- Volume of sample = 5.00 dm3 Mole fraction of oxygen gas in sample = 0.25 To find = mass of…

Q: 4. Starting from the universal gas constant (R = 8.314 1.30 moles of an ideal gas at 27.0°C and a…

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Q: Given an average carbon dioxide concentration of 400 ppmv, estimate the mole fraction, partial…

A: Carbon dioxide concentration =  400 ppmv C mgm3 = ppmv ×PR T ×mw C mgm3 =400 ×10.0821×298 ×44…

Q: The total pressure exerted by air at 2000 m above sea level is 596 mm Hg. The nitrogen gas (N2)…

A: Dalton’s law is applicable to calculate any gas’ partial pressure present in given gaseous mixture.…

Q: mole fraction of eac

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Q: 8. What is the molar fraction of air component? Evaluate the average density of air at T = 25 °C.…

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Q: Write all pertinent computations to justify your final answer What is the molecular weight of gas X…

A: A question based on properties of a gas that is to be accomplished.

Q: What is the partial pressure of oxygen in air at atmospheric pressure (101 kPa)? Assume ideal…

A: Given: Atmospheric pressure = 101 KPa.

Q: A vessel of volume 22.4 dm3 contains 2.00 mol of H2(g), and 1.0 mol of N2(g) at 273.15 K. Calculate…

A: The mole fraction of hydrogen gas (χH2) is calculated as shown below where nH2 and nN2 are the…

Q: A vessel at 500 K contains O, and N, with number densities of 1023 m-3 and 1024 m-3. What is the…

A: Given: The number density of O2 = 1023 m-3 And the number density of N2 = 1024 m-3

Q: Given that the mass density of air at 0.987 bar and 27 °C is 1.146 kg m−3, calculate the mole…

A: Ideal gas assumption is:

Q: A vessel of volume 22.4 dm3 contains 2.0 mol H2(g) and 1.0 mol N2(g) at 273.15 K. Calculate (i) the…

A: (i) The mole fraction of hydrogen gas (χH2) is calculated as shown below where nH2 and nN2 are the…

Q: Provide a molecular interpretation for the variation of therates of diffusion and effusion of gases…

A: Diffusion The movement of particles (ions, atoms, molecules ) from higher concentration to lower…

Q: 2) Explain the origin of the "a" term in the van der Waals equation. Which has the lower "a"…

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Q: 1. Hydrogen peroxide, H2O2, is used by some water treatment systems to remove the disagreeable odor…

A: Mole fraction is the ratio of the number of moles of solute of interest to the total moles present…

Q: Determine the mole fraction of toluene

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Q: A vessel of volume 22.4 dm3 contains 1.5 mol H2(g) and 2.5 mol N2(g) at 273.15 K. Calculate (i) the…

A: The mole fraction is equal to the ratio of the number of moles of the given substance to the total…

Q: flask containing 152 cm3 of hydrogen was collected under a pressure of 20.6 kPa. What pressure would…

A: We have give that Initial volume of gas = V1 = 152cm3  Initial pressure of gas = P1 = 20.6Kpa  Final…

Q: mole fraction: sulfur hexafluoride partial pressure: atm mole fraction: carbon monoxide partial…

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Q: Calculate the mole fractions of the molecules of a mixture that contains 56 g of benzene (C6H6) and…

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Q: A certain gas mixture is at a pressure of 3500 kPa and is composed of 18.0 g of O2 and 28.0 g of…

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Q: The mass density of a gaseous compound was found to be 1.23 kg m−3 at 330 K and 20 kPa. What is the…

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Q: The mass density of phosphorus vapor is 0.6388 kg m-3 at 100°C and 1.60 kPa, which corresponds to a…

A: Solution - Mass density - The mass density of an object is defined as its mass per unit volume. Mass…

Q: The mole fraction of krypton in dry air near sea level is 0.00000114, where the molar mass of…

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Q: Explain the significance of the constant a and b in the van der Waals eqaution state

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