Question

4.You purchase a rectangular piece of metal that has dimensions 5.0 X 15.0 X 30.0 mm and a mass of 0.0158 kg. The seller tells you that the metal is gold. To check this, you compute the average density of the piece. What value do you get? Were you cheated?

Answer 1

Step-by-step explanation:

Density = mass / volume

d = 15.8 g / (0.5 cm × 1.50 cm × 3.00 cm)

d = 7.02 g/cm³

The density of gold is about 19.3 g/cm³. The metal is NOT gold.