Answer:
[tex]\boxed {\boxed {\sf d= 1.3 \ g/mL}}[/tex]
Explanation:
Density can be found by dividing the mass by the volume.
[tex]d=\frac{m}{v}[/tex]
The mass of the pipe is 78 grams. It displaced 60 milliliters of water, therefore that is the volume.
[tex]m=78 \ g\\v= 60 \ mL[/tex]
Substitute the values into the formula.
[tex]d=\frac{78 \ g }{60 \ mL}[/tex]
Divide.
[tex]d= 1.3 \ g/mL[/tex]
The density of the PVC pipe is 1.3 grams per milliliter
