Question

A solution of `Al_(2)(So_(4))_(3){d=1.253 gm//ml}` contain `22%` salt by weight. The molarity , normality and molality of the solution is
A. 0.805 M, 4.83 N, 0.825 m
B. 0.825 M, 48.3 N, 0.805 m
C. 4.83 M, 4.83 N, 4.83 m
D. None

Answer 1

Correct Answer - A
Molarity `= (% xx 10xx d)/(GM M)=(22xx10xx1.253)/(342)=0.805 M`.
Normality `= (% xx 10xx d)/(GEM)=(22xx10xx1.253)/(342//6)=4.83 N`
Molality `=(22xx1000)/(342(100-22))=0.825 m`