Normality indicates the concentration of the solution. Normality definition is the weight of solute dissolved in a liter of solution. Normality of a solution can be calculated when atomic mass and volume are known. If the composition of solute and solvent are same, the solution is saturated.
Multiplying molarity can consider favorable normality calculation by the number of equivalents.
Normality (N) = Molarity (M) x number of equivalents
Determine the normality of 0.1381 mol of NaOH, which is dissolved in 300 mL.
Solution- Equivalent solute = 0.1381mol x 1 eq/mol
Solution = 300mL = 0.300L
Normality = 0.1381 x 1 eq/mol 0.300 L
Therefore Normality = 0.460 N
Example 2- Determine the normality of 0.248mol of H2SO4, which is dissolved in 250mL of solution.
Equivalent solute = 0.248mol x 2eq/mol
Solution = 250 mL = 0.250L
Normality = 0.248mol x 2 eq /mol 0.250L
Therefore Normality = 1.984 N
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