Question

If the mass of a material is 81 grams and the volume of the material is 14 cm3, what would the density of the material be?

Answer 1

Denisty = m/V
The SI unit of mass is kg
Convert 81 grams to kilograms -> 81/1000 = 0.081 kg
d= 0.081/14 
d= 5.7*10^-3 kg/m^3
Hope this helps.