indiasims08 indiasims08 19-02-2018 Chemistry contestada Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He. What is the total pressure inside the cylinder? What is the mole fraction of N2 in the mixture?