Nitrate ion is to be removed from 80 L of water by exchanging it with

chloride ion on 2 L of a strong-base resin with an ion-exchange capacity of

1.2 eq/L of resin. The water to be treated has a nitrate-ion concentration of

0.008 eq/L and a chloride-ion concentration of 0.002 eq/L. Calculate the

equilibrium concentrations and the recovery of nitrate ions

Repeat your answer for flouride ions instead of nitrate.

Comment on your answer

The Ion exchange reaction:

NO3- + RCl RNO3 + Cl

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