Nitrogen gas is produced in a reaction. If the temperature of the gas is 225.5 K, the pressure is 13.9 MPa, and the volume is 13.0 L, determine the mass of the nitrogen gas in kilograms using the Ideal Gas Law.

A sample of gas has a mass of 0.311 g. At 55°C, its volume is 0.225 L and its pressure is 886 mmHg. Find its molar mass using the Ideal Gas Law.

A sample of gas has a mass of 0.565 g. Its volume is 116 mL at a temperature of 87 °C and a pressure of 781 mmHg. Using the Ideal Gas Law, what is the molar mass of the gas?

An unknown gas occupies a volume of 1250 mL at 26°C and 705 torr. If the mass is 2.37 g, what is the molar mass of the gas? (R = 0.0821 L·atm/mol·K)

Helium gas is contained in a tank with a pressure of 11.1 MPa. If the temperature inside the tank is 29.3 °C and the volume of the tank is 16.7 L, determine the mass, in grams, of the helium in the tank using the Ideal Gas Law.

What is the mass (in grams) of 10.00 L of propane vapor (C₃H₈) at STP?

What is the molar mass of a gas if a 0.212 g sample takes up a volume of 99.056 mL at 122°C and 1.02 atm pressure?

What mass of helium gas is present in a 14.5 L sample at 273 K and 1 atm, assuming ideal gas behavior? Express your answer in grams.

What volume will 4.70 g of nitrogen gas (N₂) occupy at STP?