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What will be the molality of solution pr...

What will be the molality of solution prepared by dissolving 3.7 g propanoic acid 80 g benzene ?

A

0.77 m

B

0.625 m

C

0.045 m

D

46.25 m

Text Solution

Verified by Experts

The correct Answer is:
B
moles of acid `=(3.7)/(74)=0.05`
molality of solution `=(w)/(m)xx(1000)/(w_(("ing")))=(0.05)/(80)xx1000`
=0.625
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