The table to the right includes data for the average consumption of oil, coal, and natural gas per person per year in the US$.$ This information can be used to estimate the mass of $C{O}_2$ produced per person per year in the US$.$ Although oil, coal, and natural gas are mixtures of many different substances, to simplify the calculations we can assume that oil is mostly made of heptane $(C_7{H}_{16}),$ natural gas is made of methane $(C{H}_4),$ and that the mass percentage of carbon in the coal we use is close to $90\%.$ Thus, the following chemical equations may be used to solve the problem...

PROBLEMS:

$1.$ What mass of CO$2$ in kg is produced per person per year due to oil consumption?

$2.$ What mass of CO$2$ in kg is produced per person per year due to natural gas consumption?

$3.$ What mass of CO$2$ in kg is produced per person per year due to coal consumption?