Solutions Question 167

Question: A solution of Al2(SO4)3,d=1.253,gm/ml contain 22% salt by weight. The molarity, normality and molality of the solution is [MP PET 2004]

Options:

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

Show Answer

Answer:

Correct Answer: A

Solution:

Molarity =perc.×10×dGMM

=22×10×1.253342=0.805M . Normality =perc.×10×dGEM

=22×10×1.253342/6=4.83N Molality =22×1000342(10022)=0.825m



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