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The molecular formula of a commerical r...

The molecular formula of a commerical resin used for exchanging ions in water softening is `C_(8)H_(7)SO_(3)Na` (mo. Wt. 206). What would be the maximum uptake of `Ca^(2+)` ions by the resin when expressed in mole per gram resin-

A

`(2)/(309)`

B

`(1)/(412)`

C

`(1)/(103)`

D

`(1)/(206)`

Text Solution

Verified by Experts

The correct Answer is:
B

`1 mol " "Ca^(2+)-= 412`g of resin
Maximum uptake of `Ca^(2+)` ions`=(1 mol)/(412g)=(1)/(412)mol*g^(-1)`.
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