Question

How do you find the mass of a substance if you know the volume?

Answer 1

You will need to determine density. Density is the property of a substance that relates its mass and volume. You can usually find the density of a substance by searching online.

Explanation:

`"density"=("mass")/("volume")`

You need to determine the density of the substance and then multiply the known volume times the density to calculate mass.

Example
What is the mass of a sample of copper that has a volume of `"3.00 cm"^3"`?

Solution
Look up the density of copper. The density of copper is `"8.933 g/cm"^3`. http://education.jlab.org/itselemental/ele029.html

Multiply the volume times the density.

`3.00cancel"cm"^3xx(8.933"g Cu")/(1cancel"cm"^3)="26.8 g Cu"`