The density of aluminum is 2.70g/cm^3. a piece of aluminum foil has a volume of 54.0 cm^3. what is the mass of this piece of aluminum foil?

The mass of aluminium foil is calculated as follows

mass = density x volume

density = 2.70 g/cm^3

volume 54 cm^3

mass of aluminium foil is therefore = 2.70 g/cm^3 x 54 cm^3 = 145.8 grams

cm^3 cancel out each other