# 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?

Aug 29, 2016

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

#### Explanation:

Volume of this cube $V = {a}^{3}$

$V = {4.4}^{3}$

$V = 85.184 c {m}^{3}$

Since density (d) is 21.4 g per cubic centimeter

Mass will be $M = d \cdot V$

$M = 21.4 \cdot 85.184 = 1822.94 g r a m s = 1.82 k g$