Question

Calculate the weight of 5 US gallons of gasoline whose density is 0.81 g mL^-1.
(That's mL at minus 1)

Answer 1

Convert gallons to mL first.

Answer 2

Convert gallons to mL first.
and then...
mass= volume x density
you can find mass and for weight..
w= mass x gravitational acceleration
w= mg
where g= 9.8 m/sec^2

Answer 3

got it..??