Question

Ammonia (NH3) can be synthesized from nitrogen gas (N2) and hydrogen gas (H2) by the following reaction.

N2(g) + 3 H2(g) → 2 NH3(g)
If the theoretical yield of ammonia is 383 g and the actual yield is 253 g, calculate the percent yield of ammonia.

Answer 1

%age Yield = 66.05 %

Step-by-step explanation:

In order to check the efficiency of a reaction the %age is calculated so that it can be concluded that either the conditions provided for certain reactions are favourable or not because at large scales reactions with greater %age yields are favoured as it results in high product quantity and hence, greater economical advantages.

The percent yield is given as;

%age Yield = Actual Yield / Theoretical Yield × 100

Putting values,

%age Yield = 253 g / 383 g × 100

%age Yield = 66.05 %

Hence, for the given reaction the success of the reaction is only 65% hence, steps can be made to improve this yield by modifying the reaction conditions.