4NH3 + 3O2 → 6H2O + 2N2
Calculate the amount of ammonia:
n (NH3) = V (NH3) / Vm = 67.2 / 22.4 = 3 mol
Before NH3 there is a coefficient of 4, and before N2 – 2. Therefore, the amount of nitrogen substance through the amount of ammonia can be expressed as follows:
n (N2) = n (NH3) ⋅ 2/4 = 3 ⋅ 2/4 = 1.5 mol
V (N2) = n (N2) ⋅ Vm = 1.5 ⋅ 22.4 = 33.6 l.
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