Answer:
1.50 mol N₂
Explanation:
Step 1: Write the balanced equation
2 NH₃(g) + 3 CuO(s) ⇒ 3 Cu + 3 H₂O(I) + N₂(g)
Step 2: Calculate the moles corresponding to 51.0 g of NH₃
The molar mass of NH₃ is 17.03 g/mol.
51.0 g × 1 mol/17.03 g = 2.99 mol
Step 3: Calculate the moles of N₂ produced from 2.99 moles of NH₃
The molar ratio of NH₃ to N₂is 2:1. The moles of N₂ produced are:
2.99 mol NH₃ × 1 mol N₂/2 mol NH₃ = 1.50 mol N₂
