Question

Consider the balanced equation below.
4NH3 + 3O2 mc004-1.jpg 2N2 + 6H2O
What is the mole ratio of NH3 to N2?
2:4
4:2
4:4
7:2

Answer 1

From the given balanced chemical reaction, 4NH3 + O2 ---> 2N2 + 6H2O, the ratio of the number of moles of NH3 consumed to the number of moles N2 produced is 4:2 or 2:1. Thus, for 1 mole of N2 produced, 2 moles of NH3 are consumed.