The substance to be analyzed – is deep-pink colored, highly soluble in water salt. Reaction with NH; gives blue-colored precipitate, which can be dissolved in NH3 surplus accompanied by dirty-yellow colored solution formation. After precipitation of cation by "sodium carbonate drawing out" method, supernatant was independently treated by silver nitrate solution and barium chloride solution (in acid medium in both cases) – any precipitation hasn't been observed. Addition of antipyrin in acid medium changes color to red. What kind of substance is this? Co(NO3)2 CuCl, Co(CH;COO), FeSO4

The substance to be analyzed – is deep-pink colored, highly soluble in water salt. Reaction with NH; gives blue-colored precipitate, which can be dissolved in NH3 surplus accompanied by dirty-yellow colored solution formation. After precipitation of cation by "sodium carbonate drawing out" method, supernatant was independently treated by silver nitrate solution and barium chloride solution (in acid medium in both cases) – any precipitation hasn't been observed. Addition of antipyrin in acid medium changes color to red. What kind of substance is this? Co(NO3)2 CuCl, Co(CH;COO), FeSO4

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.40QAP

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