Question

Ammonia , NH3, can be made by reacting nitrogen and hydrogen and the equation is N2+3H2-->2NH3 How many moles of NH3 can be made if 7 moles of H2 reacts with N2

Answer 1

N₂         +        3H₂       ⇒           2NH₃
1mol         :      3mol          :        2mol
                        7mol          :        nₓ

$n_{x}=\frac{7mol*2mol}{3mol}\approx4,7mol$