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Normality Definition

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Normality is a unit of concentration of chemical solutions.

Normality is a unit of concentration of chemical solutions

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Normality Definition: Normality is a measure of concentration equal to the gram equivalent weight per liter of solution. Gram equivalent weight is the measure of the reactive capacity of a molecule.

The solution's role in the reaction determines the solution's normality.

For acid reactions, a 1 M H2SO4 solution will have a normality (N) of 2 N because 2 moles of H+ ions are present per liter of solution.

For sulfide precipitation reactions, where the SO4- ion is the important part, the same 1 M H2SO4 solution will have a normality of 1 N.

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