How many milliliters of gasoline have a mass of 1.0 kg (D=0.74g/mL)?

Answer 1

We essentially are being asked to use the density (0.74 g/ml) to convert 1.0 kg to a volume in mls. We can easily do this by using dimensional analysis, as follows:

1.0 kg x 1000 g/kg x 1 ml/0.74 g = 1352.35 mls = 1400 mls (to 2 significant figures)

If you want to do this in steps, it would look like this:

1.0 kg x 1000 g/kg = 1000 g

1000 g x 1 ml/0.74 g = 1352.35 mls = 1400 mls