Question

1 N2 + 3 H2 = 2 NH3 How many moles H2 will I need to react with7.5 moles N2?

Answer 1

To answer this question, we have to use the given balanced equation to state a stoichiometric ratio between the moles of N2 and the moles of H2 that react with each other.

According to this, 1 mole of N2 reacts with 3 moles of H2, use this ratio to find how many moles of H2 react with 7.5 moles of N2:

`7.5molN_2\cdot(3molH_2)/(1molN_2)=22.5molH_2`

It means that 22.5moles of H2 will be needed to react with 7.5moles of N2.