What do molarity and molality have in common?

Both molarity and molality involves number of moles of solute

Explanation:

Molarity is obtained by dividing the number of moles of solute by the volume of solution in liters. Note that a solution is formed when a solute is dissolved in a given volume of solvent.

Molality, of a solution is obtained by dividing the number of moles of a solute by the number of kilogrammes of solvent.

In both cases, the number of moles of solute is involved. Hence, the number of moles of solute present is common to both molarity and molality calculation.

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