# What is the density of a substance with mass 200g and volume 25mL?

Jan 17, 2017

$\rho = 8$ $g / c {m}^{3}$

#### Explanation:

Density is given by the ratio of a(n) object/substance's mass to volume.

$\rho = \frac{m}{v}$

Typical units of density are $k g / {m}^{3}$ and $g / c {m}^{3}$. Because we are given the mass in grams and the volume in milliliters, we'll use $g / c {m}^{3}$. One mL is equivalent to one cubic centimeter.

Therefore, we have:

$\rho = \frac{200 g}{25 c {m}^{3}} = 8$ $g / c {m}^{3}$

The density is $8$ grams per cubic centimeter.