Question

A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is it density?

Answer 1

`color(magenta)("2.70 g/mL")`

Explanation:

To calculate the density, we have to use the formula below:

- Usually, density will have units of `g/(mL)` when dealing with a liquid or units of `g/(cm^3)` when dealing with a solid.

• The mass has units of grams, `g`.

• The volume will have units of `mL` or `cm^3`

We are given the mass and the volume, both of which have good units, so all we have to do is plug the given values into the equation:

`Density =(40.5g)/(15.0mL)`

Thus, the block of aluminum has a density of 2.70 g/mL.