A 0.050 M H2S solution contains 0.15 M NiCl2 and 0.35 M
Chapter 19, Problem 19.139(choose chapter or problem)
A 0.050 M H2S solution contains 0.15 M NiCl2 and 0.35 M Hg(NO3)2. What pH is required to precipitate the maximum amount of HgS but none of the NiS? (See Appendix C.)
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