# Question #a760d

##### 1 Answer

Here's how you can do that.

#### Explanation:

All you have to do here is use the fact that density is defined as **mass per unit of volume**.

In essence, the density of a substance tells you the mass of exactly one unit of volume of said substance. This means that you can find the density of a substance by diving the **mass** of a given sample by the **volume** it occupies

#color(blue)(ul(color(black)(rho = m/V)))#

Here

#rho# is the density of the substance#m# is the mass of the sample#V# is the volume it occupies

In order to find the mass of a sample, rearrange the above equation to isolate

#rho = m/V implies m = rho * V#

Now, let's say that a substance has a density equal to

You can say that the mass of this sample is equal to

#m = x color(white)(.)"g" color(red)(cancel(color(black)("mL"^(-1)))) * y color(red)(cancel(color(black)("mL")))#

#m = (x * y) " g"#