Part A) Given the two reactions H2S(aq)⇌HS−(aq)+H+(aq), H2S(aq)⇌HS−(aq)+H+(aq), K1K1K_1 = 9.87×10−8, and HS−(aq)⇌S2−(aq)+H+(aq), HS−(aq)⇌S2−(aq)+H+(aq), K2K2K_2 = 1.59×10−19, what is the...

Part A) Given the two reactions

H2S(aq)⇌HS−(aq)+H+(aq), H2S(aq)⇌HS−(aq)+H+(aq), K1K1K_1 = 9.87×10⁻⁸, and
HS−(aq)⇌S2−(aq)+H+(aq), HS−(aq)⇌S2−(aq)+H+(aq), K2K2K_2 = 1.59×10⁻¹⁹,

what is the equilibrium constant KfinalKfinalK_final for the following reaction?

S2−(aq)+2H+(aq)⇌H2S(aq)

Part B)

Given the two reactions

PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3K3K_3 = 1.85×10⁻¹⁰, and
AgCl(aq)⇌Ag+(aq)+Cl−(aq), AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4K4K_4 = 1.11×10⁻⁴,

what is the equilibrium constant KfinalKfinalK_final for the following reaction?

PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

Express your answer numerically.

Solutions

Expert Solution

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queen_honey_blossom answered 2 years ago

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