Question

if a metal block has as a volume of .035 mL, and a mass of 765.0 mg, what is the density of the block in g/mL?

Answer 1

Given parameters:

Volume of metal block = 0.035mL

Mass of block = 765mg

Unknown:

Volume of metal block = ?

Solution:

Density is the mass per unit volume of a substance.

Density =
`(mass)/(volume)`

Mass is the amount of matter in a substance

Volume is space occupied by a substance

Mass of the block in g;

765mg = 765 x 10⁻³ g

= 0.765g

Density =
`(0.765)/(0.035)` = 21.86g/mL

The density of the metal block is 21.86g/mL