The equilibrium constant for the reaction N2(g) + 3H2(g) = 2NH3(g) is Kp=4.34x10^-3 at 300*C. Pure NH3 is placed in a 1.00 L flask and allowed to reach equilibrium at this tempurature. There are 1.09 g NH3 in the equilibrium mixture.
What is the mass of N2 in the equilibrium mixture?