10 mL of a blood sample (contains calciu...

10 mL of a blood sample (contains calcium oxalate) is dissolved in acid, lt required 20 mL of 0.001 M `KMnO_4` (Which oxidases oxalate to carbon dioxide). What is the amount of `Ca^++` ion in 10 mL blood ?

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`5xx10^-5` moles

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