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a 2.0g sample containing CaOCl2 & NaOCl is dissolved in 100ml water and its 10ml portion was titerated against 0.15M acidified sol. of Na2C2O4. 10ml of oxalate sol. was req. to reach d end point. Titerated sol. was then treated with excess of aq. sol. of AgNO3 where all chloride precipitates as AgCl and weighed to be 0.287g. Determine mass % of CaOCl2 & NaOCl in d original sample.

a 2.0g sample containing CaOCl2 & NaOCl is dissolved in 100ml water and its 10ml portion was titerated against 0.15M acidified sol. of Na2C2O4. 10ml of oxalate sol. was req. to reach d end point. Titerated sol. was then treated with excess of aq. sol. of AgNO3 where all chloride precipitates as AgCl and weighed to be 0.287g. Determine mass % of CaOCl2 & NaOCl in d original sample.

Grade:12

1 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

Its a simple titration problem,

just equate the equivalents of two...

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Sagar Singh

B.Tech, IIT Delhi

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