Question

A piece of zinc with a mass of 12.14 g is submerged in 46.3 cm^3 of water in a graduated cylinder. The water level increases to 48.0 cm^3. The correct value for the density (g/cm^3) of zinc from these data is:

Answer 1

Volume of zinc = increase in volume of water
       = 48 cm^3 - 46.3 cm^3
       = 1.7 cm^3

mass of Zinc = 12.14 g

density of Zinc = mass / volume
                               = 12.14 g /1.7 cm^3
                                = 7.14 g/cm^3

Answer: 7.14 g/cm^3