0.2500 g sample of swimming pool oxidizer containing calcium hypochlorite as the active ingredient was dissolved in 0.50 M H2SO4 containing KI. The liberated iodine required 38.2 mL of Na2S2O3. The titrant was standardized by titrating 101.3 mg K2Cr2O7 dissolved in acid with the action of excess KI, which required 17.4 mL of the Na2S2O3. Calculate the % Ca(OCl)2 in the sample.

0.2500 g sample of swimming pool oxidizer containing calcium hypochlorite as the active ingredient was dissolved in 0.50 M H2SO4 containing KI. The liberated iodine required 38.2 mL of Na2S2O3. The titrant was standardized by titrating 101.3 mg K2Cr2O7 dissolved in acid with the action of excess KI, which required 17.4 mL of the Na2S2O3. Calculate the % Ca(OCl)2 in the sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.31QAP

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