C. 0.10 M NaCl(aq) D. 0.10 M MgCl2(aq) 25. When aqueous sodium acetate is added to an ion exchange column, the solution eluting from the column is rich in sodium cation and chloride anion. What can be concluded from this observation? A. NaCI has a higher molar solubility in water than CH3CO2Na. B. NaCI has a lower solubility product in water than CH3CO2Na. C. Chloride ion has a higher affinity for the column than acetate ion. D. Sodium ion has a higher affinity for the column than it has for acetate ion.