Equilibrium Question 883

Question: Silver ions are added to solution with [Br]=[Cl]=[CO32]=[AsO43]=0.1,M . Which compound will precipitate at lowest [Ag+] -

Options:

A) AgBr(Ksp=5×1013)

B) AgCl(Ksp=1.8×1010)

C) Ag2CO3(Ksp=8×1012)

D) Ag3AsO4(Ksp=1022)

Show Answer

Answer:

Correct Answer: A

Solution:

[Ag+] required for precipitation of various salts are AgBr=7.07×108,AgCl=1.3×105;

Ag2CO3=1.26×104;Ag3AsO4=1.38×106



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