The concentration of a solution or the amount of substance present in its given volume can be expressed in which of the following ways?

The concentration of a solution or the amount of substance present in its given volume can be expressed in any of the following ways

1. Mass percent or weight percent($\frac{\mathrm{w}}{\mathrm{w}\%}$),

2. Mole fraction,

3. Molarity and 4. Molality.