A sample of N2 gas is observed to effuse through a porous barrier in 8.89 minutes. Under the same conditions, the same number of moles of an unknown gas requires 19.6 minutes to effuse through the same barrier. The molar mass of the unknown gas is _______________ g/mol.

Q: A sample of gas CH4 is observed to effuse through a pourous barrier in 7.53 minutes. Under the same…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for gas…

Q: 4 points The temperature of a 500. mL sample of gas increases from 23.0°C to 300. K. What is the…

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Q: You have a gas sample of carbon dioxide at 298 K If the pressure is 0.827 atm what is the pressure…

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Q: It takes 169 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of…

A: It is given that an unknown gas takes 167 seconds to effuse and nitrogen gas takes 97 seconds to…

Q: A sample of argon gas at a pressure of 977 mm Hg and a temperature of 28 °C, occupies a volume of…

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Q: sample of an unknown gas is found to have a density of 2.20 g/L at a pressure of 1.12 atm and a…

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Q: Part 1. A chemist reacted 12.0 liters of F2 gas with NaCl in the laboratory to form Cl2 gas and NaF.…

A: Given: Volume (V), F2 used = 12 L The pressure (P) = 1.5 atm Temperature (T) = 28 K Standard P, T…

Q: A 2.20 gram sample of an unknown gas is found to occupy a volume of 0.697 L at a pressure of 871 mm…

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Q: What mass of Mg and what volume of 1.50 M HCI are required to make 62.3 L of H₂ gas at a temperature…

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Q: The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same…

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Q: A sample of N2 gas is observed to effuse through a pourous barrier in 1.93 minutes. Under the same…

A: Graham's law interlinks among effusion rates of two specific gases with their respective molar…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: A sample of O3 gas is observed to effuse through a pourous barrier in 7.68 minutes. Under the same…

A: Graham’s law states that rate of effusion is inversely proportional to the square root of molar mass…

Q: Calculate the total pressure (in atm) of a mixture of 0.0200 molof helium, He, and 0.0100 mol of…

A: The ideal gas equation for a mixture of two non reacting gases is expressed as  PV = (n1 + n2)RT  P…

Q: A sample of an unknown gas is found to have a density of 1.75 g/L at a pressure of 1.28 atm and a…

A: Given Pressure = 1.28 atm Density = 1.75 g/L Temperature = 52°C = 325 K R = 0.0821 atm-L/mol-K

Q: A blimp with a volume of 250OL has a pressure of 0.75 atm. The temperature of the gas inside of the…

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Q: the same barrier. The molar mass of the unknown gas is ____g/mol.

A: We have to find molar mass of the unknown gas

Q: A sample of an unknown gas is found to have a density of 1.47 g/L at a pressure of 0.596 atm and a…

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Q: At a constant temperature and pressure, the reaction of 150 mL of N₂ gas with 150 mL of H₂ gas via…

A: Given data :

Q: 13.) A 1.75 gram sample of an unknown gas is found to occupy a volume of 1.24 L at a pressure of 624…

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Q: 7.If container "A" is occupied by 1.0 mole of oxygen gas (molar mass 32.0 g/mol) while container "B"…

A: Using ideal gas equation,  PV=nRT  If T and P are constant then volume is directly proportional to…

Q: total pressure in the vessel was 987 torr. The partial pressures of nitrogen, argon, and helium were…

A: Total pressure=987 torr  It is equal to sum of partial pressure of all gases present in mixture

Q: The average molecular speed in a sample of NH3  gas at a certain temperature is 583 m/s. The…

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Q: A sample of Kr gas is observed to effuse through a pourous barrier in 1.16 minutes. Under the same…

A: According to Graham’s law of diffusion

Q: The molar mass of the unknown gas is ________ g/mol.

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Q: A gas effuses 1.30 times faster than propane (C3H8) at the same temperature and pressure. What is…

A: To calculate the rate of diffusion of gas, we use Graham's Law. This law states that the rate of…

Q: Macmillan Learning Under identical conditions, separate samples of O₂ and an unknown gas were…

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Q: A 1.58 gram sample of an unknown gas is found to occupy a volume of 0.886 L at a pressure of 658 mm…

A: Molar mass of unknown gas can be calculated by using ideal gas equation.

Q: A sample of Ne gas is observed to effuse through a pourous barrier in 3.63 minutes. Under the same…

A: According to the Graham’s law, the rate of diffusion or effusion of a gas is inversely proportional…

Q: A 1.22 gram sample of an unknown gas is found to occupy a volume of 1.13 L at a pressure of 441 mmHg…

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Q: An 1.09 mol sample of oxygen gas at a temperature of 25.0°C is found to occupy a volume of 26.3…

A: Given, number of moles of O2 = 1.09 moles Volume = 26.3 L Temperature = 25°C = 273+25 = 298 K

Q: wn molar mass: Ass:

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Q: A sample of krypton gas at a pressure of 706 mm Hg and a temperature of 60 °C, occupies a volume of…

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Q: 3. A helium balloon has a volume of 5.0 L at a pressure of 101.3 kPa. The balloon is released and…

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Q: An unknown gas diffuses at a rate of 16.2 mL/s. Under the same conditions of temperature and…

A: Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to…