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The molecular formula of a commercial re...

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

A

`(1)/(103)`

B

`(1)/(206)`

C

`(2)/(309)`

D

`(1)/(412)`

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