Question

solve it A piece of iron has a volume of 20 cm and mass 0.54 kg . find the density of iron piece in: (1) kg/m (2) g/cm

Answer 1

volume=20 cm^3 =20/1000000 m^3 =2x10^(-5) m^3

Mass=0.54 kg=54x10^(-2) kg =540 g

So, density=mass/volume
=(54x10^(-2))/(2x10^(-5)) kg/m^3
=27x10^3 kg/m^3

or=540/20 g/cm^3
=27 g/cm^3