Question

What is relative density? How is it different from density?

Answer 1

1. Relative density:- Relative density of a substance is defined as the ratio of the density of the substance to the density of water under similar conditions.
2. Formula:- $Relativedensity=\frac{Densityofsubs\tan ce\left({\rho }_{subsatnce}\right)}{Densityofwater\left({\rho }_{water}\right)}$
3. Relative density is a unitless quantity as it is the ratio of two similar quantities.
4. With the help of relative density, we can calculate the purity of a substance.