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An EDTA solution was prepared by dissolving 3.7015g of disodium ethylenedrinitrilotetraacetic acid dihydrate (MW=372.3) in enough water to make 100mL of solution A .01732g portion of a solid sample which contained copper(II) was dissolved in 100 mL of a pH 2 bufer solution. The endpoint of the titration was 9.98mL. Calculate the percent copper in the solid sample.

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