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A water sample is found to contain 96 pp...

A water sample is found to contain 96 ppm of `SO_4^(2-)` and 122 ppm of `HCO+3^(ɵ)` with `Ca^(2_)` ion as the only cation.
(a). Calculate the ppm of `Ca^(2+)` in water.
(b). Calculate the " mol of "CaO required to remove `HCO_3^(ɵ)` ion from 1000 kg of the water.
(c). Calculate the concentration of `Ca^(2+)` in ppm remaining in water after adding `CaO`.
(d). If the `Ca^(2+)` ion in 1 L of The treated water are completely exhange with `H^(o+)` ions, what will be its pH.

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