The ideal gas equation
PV =nRT
Exercises
1) 1.00 litre of a gas has a mass of 1.63g at 327oC and 104kPa. Determine the molecular mass of this gas.

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2) What is the density of a pure sample of CO2 placed in a closed container at 27oC and 93.3kPa?
Atomic mass C=12,O=16.

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3) 0.224 gram sample of nitrogen gas occupies a volume of 0.212 litre and exerts a pressure of 720mmHg. What is the temperature of the gas?
Atomic mass N=14.

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4) Oxygen gas was placed in a 2.5 litre cylinder at 730mmHg at 23oC. What is the mass of O2?
Atomic mass O=16.

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An experiment was conducted in class where oxygen gas was produced as shown on the right. If the temperature is 240oC what mass of oxygen gas is collected during this experiment?

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