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A solution of Al(2)(So(4))(3){d=1.253 gm...

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

`0.805M,0.825m`

B

`0.825M,0.805m`

C

`4.83M,4.83m`

D

`4.83M,48.3m`

Text Solution

Verified by Experts

The correct Answer is:
A
`"Molarity"=(%xx10xxd)/("gram molecular mass")`
`=(22xx10xx1.253)/(324)=0.806M`
`"Molality"=(22xx1000)/(342(100-22))=0.825m`
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