Explain thru ion-exchange column was treated

Reference no: EM13292360

A 1.00ml sample of unknown containing Co2+ and Ni2+ was treated with 25.00ml of .03872 MEDTA. Back titration with .02127 M Zn2+ at pH 5 reqired 23.54ml to reach the xylenol orage end pt. a 2.00ml sample of unknown was passed thru an ion-exchange column designed to absorb co2+. the Ni2+ that passes thru ion-exchange column was treated with 25.ooml of .03872 N EDTA and required 25.63ml of .02127
M Zn2+ for back titration. Det the molar concentration of Co2+ and Ni2+ in the original sample

Reference no: EM13292360

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