Answer:
9moles of N2
Explanations:
Given the reaction represented by the equation:
![N_2+3H_2\rightarrow2NH_3](https://img.qammunity.org/2023/formulas/chemistry/college/rft3u9eamsg3dbp5p7gzg344ki2nl8na35.png)
Given the following parameters
• Moles of ammonia = 18 moles
According to stoichiometry, 1 mole of nitrogen produces 2 moles of ammonia. Therefore the moles of nitrogen required is given as:
![\begin{gathered} moles\text{ of }N_2=\frac{1mole\text{ of }N_2}{2\cancel{moles\text{ of }NH_3}}*18\cancel{moles\text{ of }NH_3} \\ moles\text{ of }N_2=9moles \end{gathered}](https://img.qammunity.org/2023/formulas/chemistry/college/7qbs57l1vy7e6uvugn0u6jfkuh1z6dan1z.png)
Hence the moles of nitrogen required to produce 18 mol of ammonia is 9moles