What is Molarity, Normality, and molality in terms of mole concept?

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Solution

Molality is a measure of the concentration of a solute in the solution in terms of the amount of substance in a specified amount of mass of the substance.

Normality is the number of mole of equivalents per liter of solution.

Molarity is a number of moles of a solute dissolved in a one-litre solution.

Moles is unit which represents $6.022 \times 10^{23}$ particles of the same matter and defined as the amount of substance that contains as many atoms as there are in $12 g m$ of carbon.

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