How many moles of ammonia (NH) can be produced from the reaction of 4.0 liters of hydrogen at 50.0°C and 1.2atm of pressure with excess nitrogen?

N_2 (g) + 3 H_2 (g) rightarrow 2NH_3 (g) In a certain reaction, 5.0 moles of hydrogen is reacted with excess nitrogen. To determine how many moles of ammonia are produced, what conversion factor should be used. (choose all that apply) [2 mol NH_3/3 mol H_2] [2 mol NH_3/1 mol_2] [2 mol NH_3/5 mol_2] [3 mol H_2/2 mol NH_3]