An unknown material has a mass of 6.75g and a volume of 9 cm3. What is the density of the material? Round to the nearest tenth?

Answer is: the density of the material is 0.8 g/cm³.

m (material) = 6.75 g; mass of unknown material.

V (material) = 9 cm³; volume of unknown material.

d (material) = m (material) : V (material).

d (material) = 6.75 g : 9 cm³.

d (material) = 0.75 g/cm³; density of unknown material.