How many moles of oxygen are required to burn 3.0 mole of C10H8 (naphthalene)? (Please help, thank you!)

Answer 1

The problem says napthalene, not propane. The equation is C₁₀H₈ + 12O₂---> 10CO₂ + 4H₂O. So 12 moles of O₂ are used to burn 1 mole of C₁₀H_8.. So for 3 moles of C₁₀H₈, 36 moles of O₂ are needed.