Given the two reactions H2S(aq)⇌HS−(aq)+H+(aq), H2S(aq)⇌HS−(aq)+H+(aq), K1K1K_1 = 9.40×10−8, and HS−(aq)⇌S2−(aq)+H+(aq), HS−(aq)⇌S2−(aq)+H+(aq), K2K2K_2 = 1.19×10−19, what is the equilibrium cons

Given the two reactions

H2S(aq)⇌HS−(aq)+H+(aq), H2S(aq)⇌HS−(aq)+H+(aq), K1K1K_1 = 9.40×10⁻⁸, and
HS−(aq)⇌S2−(aq)+H+(aq), HS−(aq)⇌S2−(aq)+H+(aq), K2K2K_2 = 1.19×10⁻¹⁹,

what is the equilibrium constant KfinalKfinalK_final for the following reaction?

S2−(aq)+2H+(aq)⇌H2S(aq)

Given the two reactions

PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3K3K_3 = 1.77×10⁻¹⁰, and
AgCl(aq)⇌Ag+(aq)+Cl−(aq), AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4K4K_4 = 1.23×10⁻⁴,

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.

Expert Solution

queen_honey_blossom answered 2 years ago

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..

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 reaction? S2−(aq)+2H+(aq)⇌H2S(aq) 2) Given the two reactions PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3K3K_3 = 1.80×10−10, and 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 the following reaction? PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

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