Question

How many moles of H2 is needed to produce 9 moles of NH3 ?

Answer 1

The balanced equation is:

`N_2+3H_2\rightarrow2NH_3`

According to this, 3 moles of H2 produce 2 moles of NH3, use this ratio to find how many moles produce 9 moles of NH3:

`9molNH_3\cdot(3molH_2)/(2molNH_3)=13.5molH_2`

It means that 13.5 moles of H2 are needed to produce 9 moles of NH3.