Question

A steel container is filled with 5.00atm of nitrogen, 2.00atm of oxygen, and 0.50atm of argon. What is the total pressure in the vessel and the mole fraction of each gas?

Answer 1

Ptotal = pO2 + pAr + pN2.

XO2 = mols O2/total mols
XN2 = mols N2/total mols.
XAr = mols Ar/total mols.