Question

A certain liquid has a density of 2.67 g/cm3. 30.5 mL of this liquid would have a mass of ________ Kg.

0.0114
11.4
0.0814
0.0875 81.4

Answer 1

One ml is equal to a cm3, then

m=2.67g/cm3*30.5cm3

m=81.435g

If we divide this quantity by 1000 to pass this to Kg we get:

m=81.435/1000=0.081435kg

Explanation:

Remember the formula of density is density=mass/volume, if we solve for mass we get:

mass=density*volume