Question

The mass of a cube of iron is 250. g. iron has a density of 7.87 g/cm3. what is the mass of a cube of lead that has the same dimensions?

Answer 1

density of lead = 11.34 g/cm^3 
mass = density x volume = 11.34 g/cm^3 x 45.3 = 513.7 g is the mass of a cube of lead