Calculate the number of pounds of 

CO2 released into the atmosphere when a 20.0 gallon

20.0 gallon tank of gasoline is burned in an automobile engine. Assume that gasoline is primarily octane, C

8

H

18

,

C8H18, and that the density of gasoline is 0.692 g⋅mL

−1

.

0.692 g⋅mL−1. This assumption ignores additives. Also, assume complete combustion.