Question

the density of granite is approximately 2.7 grams per cubic centimeter. what would be the approximate mass of a cube of granite 10.0 centimeters on a side

Answer 1

Given parameters:

Density = 2.7g/cm³

Length of the cube = 10cm

Unknown:

Mass of the cube = ?

Solution:

Density is the mass per unit volume of a substance.

Density =
`(mass)/(volume)`

Mass = density x volume

We need to find the volume of the cube;

Volume of the cube = L³

where L is the length of the cube;

Volume of the cube = 3³ = 27cm³

So, the mass of the granite = 2.7 x 27 = 72.9g

The granite has a mass of 72.9g