# What is the density of 400g of copper with 1.5 mL of volume?

Aug 30, 2016

The density of copper with the values given in the question is $\text{300 g/cm"^3}$. This is NOT the correct density for copper, which is $\text{8.96 g/cm"^3}$ near room temperature.

#### Explanation:

Density is the mass per unit of volume. The density equation is $\text{D="M/V}$, where $\text{D}$ is density, $\text{M}$ is mass, and $\text{V}$ is volume.

The mass of copper is $\text{400 g}$. The volume is $\text{1.5 mL}$, which is equal to $\text{1.5 cm"^3}$. This is because $\text{1 mL"="1 cm"^3}$. Since copper is a solid, we'll use the cubic centimeter unit $\left(\text{cm"^3}\right)$.

Plug the values into the equation.

$\text{D"="400 g"/"1.5 cm"^3}$$=$$\text{300 g/cm"^3}$ rounded to one significant figure.

NOTE!: The actual density of copper is $\text{8.96 g/cm"^3}$.