How many moles of #NH_3# are produced when 1.2 moles #H_2# reacts?
We assume (very unreasonably!) quantitative reaction.
The stoichiometry of the reaction dictates that for each equiv dinitrogen, 3 equiv of dihydrogen react, to give 2 equiv ammonia.
Since there are
All I am doing is following the reaction stoichiometry. Note that such a quantitative reaction in dinitrogen reduction is very unfeasible, and a chemical engineer would jump for joy if such turnovers were achieved.