If a gas sample (containing only N2 and O2) has a partial pressure of N2 of 360 mmHg and a partial pressure of O2 of 225 mmHg, what is the mole fraction of N2 in the sample?

If 1.58 g Ar are added to 3.61 atm He in a 2.00L cylinder at 27.0 °C, what is the total pressure of the resulting gaseous mixture? Ptotal = atm

What is the total pressure in a canister that contains oxygen gas at a partial pressure of 804 mmHg, nitrogen at a partial pressure of 220 mmHg, and hydrogen at a partial pressure of 445 mmHg?

If a 0.614g sample of gas maintains a pressure of 238 mmHg when contained in a 1.0L flask at 0.0 degrees Celsius, what is the gas's molecular weight?

The total pressure of a mixture of two gases is 5.3 atm. If gas A has a pressure of 2.3 atm, what is partial pressure of gas B?

A sample of CO2 gas at 373.15 k has a volume of 250 mL at 1 atm. How many moles of CO2 are present?

Calculate the final volume when 125 mL of argon gas undergoes a pressure change from 705 mm Hg to 385 mm Hg.

A 1.47 g sample of CO2 is contained in a 708 mL flask at 24.9 °C. What is the pressure of the gas? Pressure = atm

A gas sample occupying a volume of 87.5 mL at a pressure of 0.887 atm is allowed to expand at constant temperature until its pressure reaches 0.439 atm. What is its final volume?

Heliox is a mixture of helium and oxygen gas used to help patients with breathing difficulties. It is also used for scuba diving. The total pressure in a tank of Heliox is 208 atm. If the mole fraction of O2 is 0.220, what is the partial pressure of He in the tank?