Total salt experiment: Inorganic cations can be quantified by passing a salt solution through a cation-exchange column in the H form and titrating the released H with strong base. The moles of OH titrant equal the equivalents of cation charge in solution.(a) What volume of 0.023 1 M NaOH is needed to titrate the eluate when 10.00 mL of 0.045 8 M KNO3 have been loaded on a cation exchange column in the H (b) A 0.269 2 g sample of unknown salt is dissolved in deionized water and loaded onto a cation exchange column in the H The column is rinsed with deionized water and the combined load- form? form ing and rinse solutions are titrated with 0.139 6 M KOH. A volume of 30.64 mL is required to reach the endpoint. How many equiva- lents of cation are in the sample? Find the milliequivalents of cation per gram of sample (meq/g). (c) The mass of substance containing one equivalent is called the equivalent mass. If the cation has a +1 charge, the equivalent mass equals the molar mass. If the cation has a +2 charge, the equivalent mass is half the molar mass. What is the equivalent mass of the sample in (b)?