Question

an automobile gasoline tak holds 80 litres. Gasoline weighs 0.803 g/cm^3. what is the weight of the gasoline in a full tank? Give the answer in kilograms rounded off to the nearest tenth kilogram

Answer 1

To keep the units straight, convert L to cm^3. There are 1000 cm^3 in a liter, so the volume of the gas tank is (80 L) (1000 cm^3/L) = 80,000 cm^3.

m = pV

m = (0.803 g/cm^3) (80,000 cm^3) = 64,240 g or 64.2 kg

Answer 2

thanks Amy

Answer 3

or, just treat this as doing conversion from L to kg
80L * 1000cm^3/L * 0.803 g/cm^3 * 1kg/1000g = 64.24 kg