Calculate the normality of a solution made by dissolving 10.0 g of KOH in water to produce 125 mL of solution.
A)1.43 N
B)0.178 N
C)0.713 N
D)2.86 N
E)1.25 N

Question

Quizplus · Accepted Answer

Normality (N) is calculated as equivalents of solute per liter of solution. KOH has a molar mass of 56.11 g/mol and provides one equivalent per mole. Thus, 10.0 g KOH is 0.178 mol, which is 0.178 equivalents. In 0.125 L, the normality is 0.178 eq / 0.125 L = 1.43 N.

Calculate the Normality of a Solution Made by Dissolving 10