Define normality and molarity.

Solution

Normality (N). It is defined as the number of gram equivalent of the solute dissolved per litre of the solution.

Normality space equals space fraction numerator No. space of space gram space equivalent space of space solute over denominator Volume space of space solution space in space litres end fraction

Molarity (M). It is defined as the number of moles of solute dissolved per litre of the solution.

Molarity space equals space fraction numerator Number space of space moles space of space solute over denominator Volume space of space solution space in space litres end fraction space space space space space space space space space space space space equals space fraction numerator Number space of space moles space of space solute over denominator Volume space of space solution space in space ml end fraction cross times 1000 The space units space of space molarity space are space moles space per space litre left parenthesis mol space straight L to the power of negative 1 end exponent right parenthesis.

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