A chamber contains equal molar amounts of He, Ne, Ar, and Kr. If the total chamber pressure is 1 atm, then the partial pressure of Kr is:

A gaseous mixture consists of 1.26 mol of helium, 0.36 mol of neon, and 1.58 mol of argon. What is the mole fraction of helium in the mixture?

A sample of gas contains (among other things): 7.0% CO, 15% CO2, 4.0% O2 and 4.5%CH4, all by volume. What is the mole fraction of methane in the sample?

2. A chemist collects 3.97 g of NH3) and 4.89 g of O2) and has a total pressure of 23.78 torr calculate the mole fraction and partial pressure of both NH3G) and O2o)-

A chamber contains equal molar amounts of He, Ne, Ar, and Kr. If the total chamber pressure is 1 atm then what is the partial pressure of Kr?

A student has a 2.97 L bottle that contains a mixture of O2 , N2 , and CO2 with a total pressure of 4.70 bar at 298 K . She knows that the mixture contains 0.277 mol N2 and that the partial pressure of CO2 is 0.336 bar . Calculate the partial pressure of O2 .

What is the partial pressure(atm) for Ar (g) in a mixture of 0.0188 mol N2, 0.02661 mol O2, and 0.0934 mol At where the total pressure is 2.50 atm?

A gaseous mixture consists of 1.54 mol of helium, 0.36 mol of neon, and 1.58 mol of argon. What is the mole fraction of helium in the mixture?