A balloon is filled to a volume of 18.1L at a temperature of 27.1ºC. If the pressure in the balloon is measured to be 2.20 atm, how many moles of gas are contained inside the balloon?

A gas-filled weather balloon has a volume of 57.0 L at ground level, where the pressure is 767 mmHg and the temperature is 23.9 °C. After being released, the balloon rises to an altitude where the temperature is –5.32 °C and the pressure is 0.0688 atm. What is the weather balloon's volume at the higher altitude? L V =

A sample of gas at 35.8 psi is heated from 25.0 °C to 100.0 °C. Assuming the volume is constant, what is the pressure (in atm) of the gas at 100.0 °C?

If 2.57 mol2.57 mol of an ideal gas has a pressure of 5.82 atm5.82 atm and a volume of 84.25 L,84.25 L, what is the temperature of the sample?

A mixture of argon and krypton gases, in a 9.30 L flask at 46 °C, contains 6.46 grams of argon and 45.4 grams of krypton. The partial pressure of krypton in the flask is atm and the total pressure in the flask is atm.

A sample of a gas at room temperature occupies a volume of 16.0 L at a pressure of 442 torr . If the pressure changes to 2210 torr , with no change in the temperature or moles of gas, what is the new volume, V2?   Express your answer with the appropriate units.

A 20.0-L tank contains 0.486 g of helium at 18 deg C. The molar mass of helium is 4.00 g/mol. What is the pressure in the tank in torr?

If 43.6 g  of O2 and 3.6 g  of CO2 are placed in a 11.0 L  container at 21 oC , what is the pressure of the mixture of gases?

If 4.95 mol4.95 mol of an ideal gas has a pressure of 7.39 atm7.39 atm and a volume of 62.15 L,62.15 L, what is the temperature of the sample?