concrete block is shown. Note that the walls for the block are 1 inch (2.5 cm) thick. If the block has a mass of 12,150 g, what is the block's densi

Question

A concrete block is shown below. Note that the walls for the block are 1 inch (2.5 cm) thick. If the block has a mass of 12,150 g, what is the block's density

Answer 1

Density is defined at mass per unit volume.  You know the mass (12,150 g) and now you need to find the volume (in cubic centimeters).

2.5 cm x 2.5 cm x 2.5 cm = 15.625 cm³

Density = 12,150 g/15.625 cm³ = 777.6 g/cm³