Chemistry Question on Stoichiometry and Stoichiometric Calculations

Question

20.0 kg of H $_2$ (g) and 30 kg of H $_2$ (g) are reacted to produce NH3(g). The amount of NH3(g). formed is

Answer 1

Solution

The correct option is (B): 17 kg
The reaction is:
N 2(28g)+3 H 2(6g)→2 NH 3(34g)
The limiting reactant is H 2.
The weight of NH 3 obtained from 6×10−3 kg of H2 is 34×10−3kg
Therefore, the weight of NH 3 obtained from 3 kg of H 2 is:
$\frac{34×10^{−3}}{6×10^{−3}}×3=17 Kg NH_3$
=17 Kg.