Question

Calculate the density of a rectangular solid which has a mass of 25.71g. It is 2.30cm long, 4.01 cm wide and 1.82 cm high.

Answer 1

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. Calculation is as follows:

Density = mass / volume = 25.71 g / (2.30cm x 4.01 cm x 1.82 cm)
Density = 1.53 g/cm^3

Answer 2

V = a x b x c

V = 2.30 x 4.01 x 1.82

V = 16.78586 cm³

D = m / V

D = 25.71 / 16.78586

D = 1.53 g/cm³