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If the sea water is 3.5% (w/w) aqueous s...

If the sea water is 3.5% (w/w) aqueous solution of NaCI then its molality will be:-

A

0.598 m

B

36.27 m

C

0.62 m

D

0.578 m

Text Solution

Verified by Experts

The correct Answer is:
C
Molality `=(w)/(m)xx(1000)/(w_(("ing")))`
`=(3.5)/(58.5)xx(1000)/(96.5)=0.62m`
`[because3.5%"NaCI solution"=3.5 g "NaCI in" 96.5gH_(2)O]`
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