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1) Given the two reactions H2S(aq)⇌HS−(aq)+H+(aq),  H2S(aq)⇌HS−(aq)+H+(aq),   K1K1K_1 = 9.53×10−8, and HS−(aq)⇌S2−(aq)+H+(aq),  HS−(aq)⇌S2−(aq)+H+(aq),   K2K2K_2 = 1.13×10−19, what is the equilibrium constant Kfinal for the following...

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Chemistry

1) Given the two reactions

  1. H2S(aq)⇌HS−(aq)+H+(aq),  H2S(aq)⇌HS−(aq)+H+(aq),   K1K1K_1= 9.53×10−8, and
  2. HS−(aq)⇌S2−(aq)+H+(aq),  HS−(aq)⇌S2−(aq)+H+(aq),   K2K2K_2= 1.13×10−19,

what is the equilibrium constant Kfinal for thefollowing reaction?

S2−(aq)+2H+(aq)⇌H2S(aq)

2) Given the two reactions

  1. PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq),  PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq),   K3K3K_3= 1.80×10−10, and
  2. AgCl(aq)⇌Ag+(aq)+Cl−(aq),  AgCl(aq)⇌Ag+(aq)+Cl−(aq),   K4K4K_4= 1.13×10−4,

what is the equilibrium constant Kfinal for thefollowing reaction?

PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

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