Question

A liquid that occupies a volume of 9.0 L has a mass of 7.2 kg. What is the density of the liquid in kg/L ?

Answer 1

Answer:

Density of the liquid is 0.8 kg/L

Explanation:

It is given that,

Mass of liquid, m = 7.2 kg

Volume of liquid, v = 9 L

We have to find the density of liquid. Density of a liquid is defined as the ratio of mass per unit volume. Mathematically, it can be written as :

$\rho=\dfrac{m}{V}$

$\rho=\dfrac{7.2\ kg}{9\ L}$

$\rho=0.8\ kg/L$

So, the density of the liquid is 0.8 kg/L. Hence, this is the required solution.

Answer 2

The density of an object is mass / volume. These units are unusual but since you are reporting your answer in kg/L, the actual conversion is unnecessary

d = m/V
d = 7.2 kg / 9 L
d = 0.8 kg / L