Question

The density of a substance is 0.9 g/cm3 .
(i) Find its relative density.
(ii) Find its density in S.I. units.

Answer 1

RD = 0.9; density = 900 kg/m3

Explanation:

The density of a substance is 0.9 g/cm3.

The density of water is about 1 g/cm3.

Relative density of the substance = density of substance / density of water = 0.9 / 1 = 0.9

S.I. unit for density is kilogram per cubic metre (kg/m3)

So density of the substance in SI units = 0.9 * 10^-3 * 10^6

= 0.9 * 10^3

= 900 kg/m3

Answer 2

please refer to the attachment