The Combustion of Propane (C₃H₈)in the Presence of Excess Oxygen

Multiple Choice

The combustion of propane (C₃H₈) in the presence of excess oxygen yields CO₂ and H₂O: C₃H₈ (g) + 5O₂ (g) → 3CO₂ (g) + 4H₂O (g)
When 2.5 mol of O₂ are consumed in their reaction, ________ mol of CO₂ are produced.

A) 1.5
B) 3.0
C) 5.0
D) 6.0
E) 2.5