Question

An automobile gasoline tank holds 20.0 gal when full. How many pounds of gasoline will it hold if the gasoline has a density of 0.560 g/mL?

Answer 1

I would change g/mL to lbs/gallon. Then pounds gasoline = gallons x density in lgs/gallon = ?
The easiest way to change g/mL to lbs/gallon is to use google.

Answer 2

What is the mileage in miles per gallon? (Given: 1 km {\rm km} = 0.621 mi {\rm mi} and 1 L {\rm L} = 0.264 gal {\rm gal})

Answer 3

Assume a gasoline is isooctane, which has a density of 0.692 g/mL. What is the mass of 1.7 gal of the gasoline (1 gal = 3.78 L)?