Question

A student is given the following question:
"What is the mass of a gold bar that is 7.379 × 10–4 m3 in volume? The density of gold is 19.3 g/cm3."

$73.397 x 10-4 m3 in volume$
What is the answer to the equation? Write your answer to the correct number of significant figures.

Answer 1

Vol. =7.379 × 10–4 m³ =7.379 × 10^–4×10^6 cm³

=7.379×10²cm³

density =19.3 g/cm³.

mass = vol.×density = 7.379×10^2*19.3

=14241.47 g

so 14.24147 kg answer