Explain why 6M NH3 and not 6M NaOH solution is used when separation Fe3+ and Al3+ ions from Ca2+, Cu2+, and K+ ions in the qualitative analysis of cations. Write appropriate chemical equations to support your conclusion.

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter21: Potentiometry
Section: Chapter Questions
Problem 21.12QAP
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Explain why 6M NH3 and not 6M NaOH solution is used when separation Fe3+ and Al3+ ions from Ca2+, Cu2+, and K+ ions in the qualitative analysis of cations. Write appropriate chemical equations to support your conclusion.

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