Question

1. How is the density of a substance calculated? 2. If the shape of an object is irregular, like a stone, how can you measure its volume? 3. If the volume of a cube of wood is15.625 cm3 and its mass is 10.00 grams, show the calculation for the density of the wood.

Answer 1

1. Density is calculated by dividing the object's mass by the volume it occupies. 
2. The volume may be determined by water displacement method.
3. D = m/v
Substituting the known values,
                 D = 10.0 g / 15.625 cm³ = 0.64 g/cm³