3. A solution that may contain any of the group III cations. Treatment of the solution with CIO in alkaline medium yields a yellow solution and a colored precipitate. The acidified solution is unaffected by treatment with NH,OH. The colored precipitate dissolves in nitric acid: addition of excess NH,OH to this acidic solution produces only a blue solution. Which group III ions are present? Which are absent? Which are in doubt? How would you remove all doubt?

3. A solution that may contain any of the group III cations. Treatment of the solution with CIO in alkaline medium yields a yellow solution and a colored precipitate. The acidified solution is unaffected by treatment with NH,OH. The colored precipitate dissolves in nitric acid: addition of excess NH,OH to this acidic solution produces only a blue solution. Which group III ions are present? Which are absent? Which are in doubt? How would you remove all doubt?

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter9: Complexometric And Precipitation Titrations

Section: Chapter Questions

Problem 7P

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