Question

calculate the density of a metal block with 2 cm * 4 cm * 3 cm and a mass of 50.0 G

Answer 1

The density is mass divided by volume. The volume is

$$V=abc=2\cdot4\cdot3=24\text{ cm}^3.$$

The density:

$$\rho=\frac{m}{V}=\frac{50\text{ g}}{24\text{ cm}^3}=2.08\text{ g/cm}^3.$$