An unknown amount of butane (x moles of C4H10) is burned with pure oxygen in a bomb calorimeter. The dry gas molar analysis of the products is 48.72% CO2 and 51.28% O2. Determine
a. The actual molar and mass oxygen/fuel ratios.
b. The percent excess oxygen used.
c. The molar percentage of each combustion product before the exhaust gas was dried for this analysis.