Answer: Qualitative Analysis for Metallic Elements
Chapter , Problem 77E(choose chapter or problem)
Problem 77E
Qualitative Analysis for Metallic Elements (Section)
A solution containing an unknown number of metal ions is treated with dilute HCI; no precipitate forms. The pH is adjusted to about 1, and H2S is bubbled through. Again, no precipitate forms. The pH of the solution is then adjusted to about 8. Again, H2S is bubbled through. This time a precipitate forms. The filtrate from this solution is treated with (NH4)2HP04. No precipitate forms. Which metal ions discussed in Section are possibly present? Which are definitely absent within the limits of these tests?
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