If the density of gasoline is 0.66 g/ml , how many kilocalories of energy are obtained from 2.7gal of gasoline?

Question

note:When 1.0g of gasoline burns, 11,500 kcal of energy are given off.

Answer 1

energy=energy/gram*grams
= energy/gram*density*volume

so convert 2.7gal to ml, and do the math.