Flexi Says: The Haber process is a reaction in which nitrogen gas is combined with hydrogen gas to form ammonia. The balanced equation is shown below:
N2(g) + 3H2(g) → 2NH3(g).
In the reaction, 2 moles of ammonia are produced from the reaction between 1 mole of nitrogen and 3 moles of hydrogen. Therefore to produce one mole of ammonia, you need 1/2 moles of nitrogen to be reacted with 3/2 moles of hydrogen. Note that hydrogen is the limiting reactant in this equation. To determine the amount of hydrogen needed to produce a certain amount of ammonia, set up a mass-mass calculation as shown below:
g NH3 → mol NH3→ mol H2 → g H2
