A 250 ml flask and stopper have a mass of 110.525 g. A 50 ml sample of gasoline is pipetted into the flask, giving a total mass of 146.770 g. Find the density of the gasoline

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. We calculate as follows:

Density = mass of gasoline / volume of gasoline = (1 46.770 g - 110.525 g) / 50 ml = 0.7249 g/mL