If I mix 3.0 mol of N2(g), 2.0 mol of Cl2(g), 4.0 mol of O2(g) and 1.0 mol of H2(g), what is the mole fraction of O2(g)? If the total pressure is 2.00 atm, what is the partial pressure of O2(g)?
(Hint-the answer for mole fraction of O2(g) and the answer for partial pressure of O2(g), both add to give 1.2, if we ignore units).