A solution contains some or all of the ions Cu2+Cu2+, Al3+Al3+, K+K+, Ca2+Ca2+, Ba2+Ba2+, Pb2+Pb2+, and NH4+NH4+. The following tests were performed, in order, on the solution.Addition of 6 MM HClHCl produced no reaction.Addition of H2SH2S with 0.2 MM HClHCl produced a black solid.Addition of (NH4)2S(NH4)2S produced a white solid.Addition of (NH4)2HPO4(NH4)2HPO4 in NH3NH3 produced no reaction.The final supernatant when heated produced a purple flame.Identify which of these ions were present in the solution, which were absent, and for which ones no conclusions can be drawn.

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Answered: A solution contains some or all of the…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 115QRT

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A solution contains some or all of the ions Cu2+Cu2+, Al3+Al3+, K+K+, Ca2+Ca2+, Ba2+Ba2+, Pb2+Pb2+, and NH4+NH4+. The following tests were performed, in order, on the solution.

Addition of 6 MM HClHCl produced no reaction.
Addition of H2SH2S with 0.2 MM HClHCl produced a black solid.
Addition of (NH4)2S(NH4)2S produced a white solid.
Addition of (NH4)2HPO4(NH4)2HPO4 in NH3NH3 produced no reaction.
The final supernatant when heated produced a purple flame.

Identify which of these ions were present in the solution, which were absent, and for which ones no conclusions can be drawn.

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