# A 25.2-mL sample of kerosene was determined to have a mass of 20.41 g. What is the density of kerosene?

Sep 5, 2016

$0.810 \frac{g}{m L}$

#### Explanation:

To calculate the density, we'll use the formula below:

 "Density = (Mass)/(Volume)

• Usually, density will have units of $\frac{g}{m L}$ when dealing with a liquid or units of $\frac{g}{c {m}^{3}}$ when dealing with a solid.

• The mass has units of grams, $g$.

• The volume can have units of $m L$ or $c {m}^{3}$

We are given the mass and the volume, both of which have good units. All we have to do is plug the given values into the equation:

$D e n s i t y = \frac{20.41 g}{25.2 m L}$

Thus, that sample of kerosene has a density of 0.810 g/mL.