# How do you convert mass to density?

Jul 25, 2018

You cannot convert mass to density. You can calculate density from mass and volume.

#### Explanation:

$D = \frac{M}{V}$,

where:

$D$ is density, $M$ is mass, and $V$ is volume.

If you known mass and volume, you can calculate density.

Example: What is the density of a sample of aluminum with a mass of $\text{5.42 g}$ and a volume of $\text{3.19 cm"^3}$?

D=("5.42 g")/("3.19 cm"^3)="1.70 g/cm"^3"

Jul 25, 2018

Well, if these are all the data you got you are a shot bird....

#### Explanation:

By definition, density, mass per unit volume, is given by the quotient...${\rho}_{\text{density"="mass of sample"/"volume of sample}}$.

And so you need a measurement of the volume of the sample. For solids, liquids, and gases, what is your estimate of their relative densities?