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 thefollowing 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 thefollowing reaction?
PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)
