Answer:
18 mol
Step-by-step explanation:
Step 1. Balanced equation
4NH₃ + 5O₂ ⟶ 4NO + 6H₂O
Step 2. Calculation:
You want to convert moles of NH₃ to moles of H₂O
The molar ratio is 6 mol H₂O:4 mol NH₃
Moles of H₂O = 12 mol NH₃ × (6 mol H₂O/4 mol NH₃)
Moles of H₂O = 18 mol H₂O
The reaction will form 18 mol of H₂O.