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Science-Related Homework Help Chemistry Topic started by: tlcp8 on Feb 9, 2018



Title: A precipitate forms when a solution that is 0.10 M in Cu2+, Pb2+, and Ni2+ is saturated with H2S and ...
Post by: tlcp8 on Feb 9, 2018
A precipitate forms when a solution that is 0.10 M in Cu2+, Pb2+, and Ni2+ is saturated with H2S and adjusted to pH = 1. What sulfides are present in the precipitate?
  H2S = 0.10 M; for H2S, Ka1  Ka2 = 1.1  1024
  Ksp: CuS = 8.5  1045, PbS = 7.0  1029, NiS = 3.0  1021
   
  a.
  CuS, PbS, and NiS
   
  b.
  PbS and NiS
   
  c.
  NiS
   
  d.
  CuS and PbS
   
  e.
  CuS


Title: A precipitate forms when a solution that is 0.10 M in Cu2+, Pb2+, and Ni2+ is saturated with H2S and
Post by: haydenpc on Feb 9, 2018
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