For the reaction 2NaN3(s) → 2Na(s) + 3N2 (g), how many moles of sodium azide (NaN3) must react in order to produce 8.75 moles of nitrogen gas?
5.83 moles NaN3
3 moles of N2 are produced from 2 moles of NaN3.
So, 8.75 moles of N2 are produced from 5.83 moles of NaN3.