Question

What is the density of a piece of wood with a mass of `343` `g` and a volume of `45` `cm^3`?

Answer 1

`D ~~ 7.6 g/(cm^3)`

Explanation:

The density of an object is its mass per unit volume. In this case, it can be computed using the formula below:

`rho = m/v`
Where `rho` is the density, `m` is the mass of the object while `v` is the volume.

Since in this question you are given both the mass and the volume, you just need to plug in the values...

[Given]
`m = 343 g`
`v = 45 cm^3`

[Solution]
`D = (343 g)/(45 cm^3)`
`D ~~ 7.622g/(cm^3)`
`D ~~ 7.6 g/(cm^3)`

Note that the density of an object or substance can be expressed in different units. Some of the more commonly used are:
- `g/(cm^3)` or `g/(mL)`
- `kg/m^3`