Question

A teacher performing a demonstration finds that a piece of cork displaces 23.5 mL of water. The piece of cork has a mass of 5.7 g. What is the density of the cork?

Answer 1

Explanation:

The density of an object is defined as the mass per unit volume. Therefore,

Mass of cork, M = 5.7 grams

Volume of water, V = 23.5 mL (and 1 mL = 1 g = 1 cm³)

Density, D = Mass/Volume

Density of Cork = 4.123 g/cm³

Answer 2

Answer: 0.24g/ml

Given that:

Volume of water displaced = 23.5 ml

Mass of cork = 5.7 g

Density of the cork = ?

Recall that density is obtained by dividing the mass of a substance by the volume of water displaced.

i.e Density = Mass/volume

Density = 5.7g /23.5ml

Density = 0.24g/ml

   ∴Thus, the density of the piece of cork is 0.24g/ml