If a 25.00 ml aliquot of a solution containing sulfide ions was added to 25.00 ml of 0.0122 M Cu2+ solution. The CuS precipitate was washed and collected. The pH of the combined filtrate and washings was then adjusted by the addition of ammonia and the solution was titrated with 0.01453 M EDTA, using a suitable indicator. The endpoint volume was found to be 10.71ml. Find the molarity of the sulfide in the sample solution.

If a 25.00 ml aliquot of a solution containing sulfide ions was added to 25.00 ml of 0.0122 M Cu2+ solution. The CuS precipitate was washed and collected. The pH of the combined filtrate and washings was then adjusted by the addition of ammonia and the solution was titrated with 0.01453 M EDTA, using a suitable indicator. The endpoint volume was found to be 10.71ml. Find the molarity of the sulfide in the sample solution.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.20QAP

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