$4\mathrm{.}74.$ A fuel oil is analyzed and found to contain $85\mathrm{.}0wt\%$ carbon, $12\mathrm{.}0\%$ elemental hydrogen $(H),1\mathrm{.}7\%$

sulfur, and the remainder noncombustible matter. The oil is burned with $20\mathrm{.}0\%$ excess air, based on

complete combustion of the carbon to $C{O}_2,$ the hydrogen to $H_{2}O,$ and the sulfur to $S{O}_2.$ The oil is

burned completely, but $8\%$ of the carbon forms $CO.$ Calculate the molar composition of the stack

gas.