Question

Platinum metal is used in jewelry; it is also used in automobile catalytic converters. What is the mass of a cube of platinum 4.40 cm on an edge? The density of platinum is 21.4 g/cm^3?

Answer 1

Volume of this cube is 85.184 cm^3 and mass=1822.94 grams

Explanation:

Volume of this cube `V= a^3`

`V=4.4^3`

`V=85.184 cm^3`

Since density (d) is 21.4 g per cubic centimeter

Mass will be `M=d*V`

`M=21.4*85.184 = 1822.94 grams = 1.82 kg`