Question

A 250 ml beaker can hold 0.198 kg of acetone. What is the density of this substance
in g/ml? Use the correct significant digits.

Answer 1

EXPLANATION:

Density is referred to as the ratio of mass per unit volume of a substance. Density is expressed in terms of g/ml.

Given : Mass of the substance = 0.198 kg

             Volume of beaker = 250 ml

To find : Density of the substance

Solution :

Converting Mass of the substance from kg (kilograms) to g (grams) -

1 kg = 1000 g

⇒ 0.198 kg = 198 g

now, using the formula of density, we get :

Density (g/ml) = Mass (g) / Volume (ml)

                       = 198 g / 250 ml

                       = 0.792 g/ml