The % w/w I– in a 0.6712-g sample was determined by Volhard titration. After adding 50.00 mL of 0.05619 M AgNO3 and allowing the precipitate to form, the remaining silver was back titrated with 0.05322 M KSCN, requiring 35.14 mL to reach endpoint. AgNO3 + I– → AgI (s) + NO3– Ag+ + SCN– → AgSCN How many millimoles of AgNO3 reacted with I–?

Fundamentals Of Analytical Chemistry
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ISBN:9781285640686
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Chapter17: Complexation And Precipitation Reactions And Titrations
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Problem 17.35QAP
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The % w/w I in a 0.6712-g sample was determined by Volhard titration. After adding 50.00 mL of 0.05619 M AgNO3 and allowing the precipitate to form, the remaining silver was back titrated with 0.05322 M KSCN, requiring 35.14 mL to reach endpoint.

AgNO3 + I → AgI (s) + NO3

Ag+ + SCN → AgSCN

How many millimoles of AgNO3 reacted with I?

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