How many moles of hydrogen, H2, are needed to react with 2.75 moles of nitrogen, N2? 5.75 moles N2

Answer 1

N₂+H₂→NH₃

First step is to write an appropriate chemical equation. Most of the time, nitrogen forms three bonds due to higher stability.

The second step is to balance your equation to have the same number of hydrogen and nitrogen atoms on both sides.

N₂+3H₂→2NH₃

The balanced equation shows us the ratio of our reactants!

So, given 2.75 moles of N₂:

2.75 moles of N₂ • 3 moles of H₂/1 mole of N₂= 8.25 moles of H₂

And given 5.75 moles of N₂:

5.75 moles of N₂ • 3 moles of H₂/1 mole of N₂= 17.2 moles of H₂