The chemical equation below shows the combustion of propane (C₃H₈). C₃H₈ + 5O₂ → 3CO₂ + 4H₂O. The molar mass of oxygen gas (O₂) is 32.00 g/mol. The molar mass of C₃H₈ is 44.1 g/mol. What mass of O₂, in grams, is required to completely react with 0.025 g C₃H₈? a) 0.018 grams b) 0.034 grams c) 0.045 grams d) 0.091 grams