MCQOPTIONS
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| 1. |
The molecular formula of a commercial resin used for exchanging ions in water softening is \[{{C}_{8}}{{H}_{7}}S{{O}_{3}}Na\](mol. Wt. 206). What would be the maximum uptake of \[C{{a}^{2+}}\]ions by the resin when expressed in mole per gram resin? |
| A. | \[\frac{1}{103}\] |
| B. | \[\frac{1}{206}\] |
| C. | \[\frac{2}{309}\] |
| D. | \[\frac{1}{412}\] |
| Answer» E. | |