A piece of copper weighing 350 g has a volume of 39.2 cm ^ 3 determine the density of copper is there

A piece of copper weighing 350 g has a volume of 39.2 cm ^ 3 determine the density of copper is there an impurity in this piece of copper?

m = 350 g

V = 39.2 cm3

ρ -?

Let’s calculate the density of copper by the formula: ρ = m / V, where ρ is the density, m is the mass, V is the volume.

ρ = 350 g / 39.2 cm3 = 8.929 g / cm3.

Let’s see the density of copper in the density table. It is equal to 8.9 g / cm3. But the resulting density of this piece of copper is slightly higher, which means there is an impurity.

Answer: 8.929 g / cm3; there is an impurity.