Question

1. A piece of pure gold (Au) has a volume of 50 cmWhat is its mass?

Answer 1

Answer:

96.5g

Explanation:

Given parameters:

Volume of Au = 50cm³

Density of Au = 19.3 g/cm³

Unknown:

Mass of the  gold  = ?

Solution:

Density is the mass per unit volume of a compound.

 Density  = $\frac{mass}{volume}$

 Mass  = density x volume

Insert the parameters and solve;

   Mass  = 19.3 g/cm³ x 50cm³  = 96.5g