Question

A piece of PVC plumbing pipe displaces 60 mL when placed into a container of water. If the pipe has a mass of 78 g, what is the density of PVC?

Answer 1

`\boxed {\boxed {\sf d= 1.3 \ g/mL}}`

Step-by-step explanation:

Density can be found by dividing the mass by the volume.

`d=(m)/(v)`

The mass of the pipe is 78 grams. It displaced 60 milliliters of water, therefore that is the volume.

`m=78 \ g\\v= 60 \ mL`

Substitute the values into the formula.

`d=(78 \ g )/(60 \ mL)`

Divide.

`d= 1.3 \ g/mL`

The density of the PVC pipe is 1.3 grams per milliliter