Question

A solution contains 1.694 mg of CoSO4 (155.00 g/mol) per milliliter. Calculate;

The volume of 0.08640 M EDTA needed to titrate a 25.00-mL aliquot of this solution.
The volume of 0.00945 M Zn2+ needed to titrate the excess of reagent after addition of 50.00 mL of 0.00864 M EDTA to a 25-mL aliquot of this solution.
The volume of 0.00864 M EDTA needed to titrate the Zn2+ displaced by Co2+ following addition of an unmeasured excess of ZnY2- to a 25.00-mL aliquot of the CoSO4 solution. The reaction is ;
Co2+ + ZnY2- → CoY2- + Zn2+​

Answer 1

Answer:

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