Molarity (M) |
Molality (m) |
It is defined as the number of moles of solute present in 1L of solution. |
It is defined as number of moles of solute present in 1 kg of solvent |
Units = molL−1 | Units = molkg−1 |
This is temperature dependent as it involves volume term, which depends on temperature. |
This is temperature independent as it involves the mass of solvent which is independent of temperature. |