Determine the density of the chalk if the volume is 20 cm3 and the mass is 48g.

Given:

V = 20 cubic centimeters – volume occupied by chalk;

m = 48 grams – mass of chalk.

It is required to determine the density of chalk (g / cm ^ 3) and express it in kg / m ^ 3.

Let’s find the density of the chalk:

ro = m / V = 48/20 = 2.4 grams per cubic centimeter.

In order to express this value in kilograms per cubic meter, you need to use the following formula:

ro (kg / m ^ 3) = ro (g / cm ^ 3) / 0.001 = 2.4 / 0.001 = 2400 kg / m ^ 3.

Answer: The density of chalk is 2,400 kilograms per cubic centimeter.