Question

calculate the normality of a solution containing 5g NaOH in 450 ml solution.

Answer 1

Normality = No. of equivalents / Volume of solution (L)

No. of equivalents = Mass / Equivalent mass

Equivalent weight or mass = Molar mass / n-factor
n-factor for NaOH = 1
Equivalent weight = Molar mass

No. of equivalents = 5/40 = 1/8 equivalents

Normality = (1/8) /0.450 = 0.2777 N or 5/18 N