A 10.00 mL sample of a solution containing Fe3+ and Co2+ are added to 100 mL...

A 10.00 mL sample of a solution containing Fe3+ and Co2+ are added to 100 mL of pH 4.5 buffer and then titrated to a Cu-PAN endpoint with 17.62 mL of 0.05106 M EDTA. A 25.00 mL sample of the same solution are added to 100 mL of pH 4.5 buffer and then 10 mL of 1 M potassium fluoride are added to mask the Fe3+. This solution was titrated to a Cu-PAN endpoint with 12.44 mL of 0.05106 M EDTA. Calculate the molarity of Fe3+ and Co2+ in the solution.

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queen_honey_blossom answered 1 year ago

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