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

Answer:

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

Explanation:

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

$d=\frac{m}{v}$

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.

$d=\frac{78 \ g }{60 \ mL}$

Divide.

$d= 1.3 \ g/mL$

The density of the PVC pipe is 1.3 grams per milliliter