Assuming gasoline is 100% isooctane, with a density of 0.692g/mL, what mass of carbon dioxide is produced by the combustion of 1.2x10^10 gal of gasoline (the approximate annual consumption of gasoline in the U.S.)?

Answer 1

Example problem. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html

Answer 2

2.2 x 10^12 mole co2

Answer 3

oral question