Molarity is a means of expressing solution concentration as the number of moles of solute per liter of solution. It is useful because it can be used as a conversion factor between moles of solute and liters of solution.

What is the main advantage of molality over molarity?

Molality is defined as the amount of solute present in 1 kg of solvent. As, mass is not dependent on temperature. So, if there is any change in the temperature, the molality will remain the same. As, molality remains the same with change in temperature and hence it has an advantage over molarity.

Which is better molarity or molality?

Molality is the number of moles of solute per kilogram of solvent. Molarity is the number of moles of solute per liter of solution. … In these situations, molality is the preferred method of expressing concentration because the mass of solute and solvent in a solution does not change.