How are mole ratios used in chemical calculations?
In order to determine the mole ratio, we need to begin with a balanced chemical equation.
For this reaction the balanced chemical equation is
The mole ratios are determined using the coefficients of the substances in the balanced chemical equation.
The mole ratios for each substance pair would be
Mole ratios are used as a means of comparison of substances in a balanced chemical equation in order to determine amounts.
Using the same reaction for ammonia
How many moles of Hydrogen gas are necessary to react with 5 moles of Nitrogen.
We can use conversion factors in a process called stoichiometry.
Mole ratio provides a comparison to cancel units. In this case the moles of Nitrogen cancel and we determine the moles of Hydrogen.
I hope this was helpful.