Question

What is the relationship between molarity and normality of a solution?

Answer 1

The molarity and normality of a solution are related as

Molarity × Molecular mass of solute = Normality × Equivalent mass of solute

Thus,

Normality = `"Molarity" xx "Molecular mass of solute"/"Equivalent mass of solute"`

and Normality = Molarity × Valence factor

For an acid, Basicity = `"Molecular mass"/"Equivalent mass"`

and for base, Acidity = `"Molecular mass"/"Equivalent mass"`

Hence, Normality of an acid = Molarity × Basicity

and Normality of a base = Molarity × Acidity