A gold coloured metal object has a mass of 365 g and a volume of 22.12

1.	A gold coloured metal object has a mass of 365 g and a volume of 22.12 cm3. Is the object composed of pure gold?
Answer» Density of gold coloured metal object = \(\frac{Mass}{Volume}\) = \(\frac{365\,g}{22.12\,cm^3}\) = 16.50 g cm³ \(\because\) The density of pure gold is 19.32 g/cm³. So, this object is not composed of pure gold.

A gold coloured metal object has a mass of 365 g and a volume of 22.12 cm3. Is the object composed of pure gold?

Answer»

Density of gold coloured metal object

= \(\frac{Mass}{Volume}\)

= \(\frac{365\,g}{22.12\,cm^3}\)

= 16.50 g cm³

\(\because\) The density of pure gold is 19.32 g/cm³. So, this object is not composed of pure gold.