Question

Pure gold (24K) has a density of 19.32 g/cm3. A wedding band weighs 3.50 grams. How much water must it displace if the band is in fact 24k gold?

Answer 1

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

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

$$V = {3.50 g \over 19.32 g/cm^3} = 0.18 cm^3$$

A wedding band made of pure gold (24K) weighing 3.50 grams should displace 0.18 cm³ of water.

Answer: 0.18 cm³.