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A solution contains 1.53 mg of CoSO4 (155.0 grams/mole) per mL. Calculate the volume (in mL)...

A solution contains 1.53 mg of CoSO4 (155.0 grams/mole) per mL. Calculate the volume (in mL) of 0.009423 M Zn2+ needed to titrate the excess complexing reagent after the addition of 50.00 mL of 0.008942 M EDTA to a 25.00 mL aliquot of the Co2+ solution.

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