Question

Calculate the mass of a rectangular solid that has a density of 2.53 g/cm3 and which measures 25 mm by 1.80 cm by 3.00 cm.

Answer 1

Mass = density x volume 
1st we need to get the volume 
V = (25*10^-1) * (1.8) * (3) 
V = 13.5 cm3 
mass = 2.53 * 13.5 
mass = 34.155 kg