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Chemistry 10 Online
OpenStudy (anonymous):

Calcium in blood or urine can be determine by precipitation as calcium oxalate, CaC2O4. The precipitate is dissolved in strong acid and titrated with potassium permanganate. The products of the reaction are carbon dioxide and manganese (II) ion. A 24-h urine sample is collected from an adult patient, reduced to a small volume, and titrated with 26.2 cm3 of 0.0946 M KMnO4. How many grams of calcium oxalate are in the sample? Normal range for Ca2+ output for an adult is 100-300 mg per 24 h. Is the sample within the normal range? please help!!

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