Afuel oil is analyzed and found to contain 86.14 wt% carbon, 11.12% elemental hydrogen (h), 1.90% sulfur, and the remainder noncombustible matter. the oil is burned with 7.5% excess air, based on complete combustion of the carbon to co2, the hydrogen to h2o, and the sulfur to so2. the oil is burned completely, but 6.50% of the carbon forms co. calculate the molar composition of the stack gas. you may take the composition of air to be 79.0 mole% n2 and 21.0 mole% o2.