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.
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.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.102QE
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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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