Question

relative density of a substance is 13.6 the density of water is 1000 kg/m³? what is the density of substance​

Answer 1

The density of the substance

=Relative Density × Density of water

=13.6×1000

=13600kg/m^3

Answer 2

We know that relative density is the ratio of the density of the substance to the density of water at 4°C.

Here, Relative Density of a substance = 13.6, Density of water = 1000 kg/m³

Now,
Relative density of the substance = Density of substance / Density of water at 4°C

Substituting the values given to us,
=> 13.6 = Density of substance / 1000

Performing cross-multiplication,
=> Density of substance = 13.6 * 1000
=> Density of substance = 13600 kg/m³

Additional information:
Substance being discussed here is mercury as the density of substance is 13600 kg/m³. Interestingly, mercury is denser than any other substance and this is one of the reasons why it is preferred as barometric liquid.