18. Aqueous Equilibrium
Precipitation: Ksp vs Q
5PRACTICE PROBLEM
A solution of two silver salts contains 0.0111 M Cl- and 0.0125 M Br-. Upon addition of a very dilute solution of silver nitrate (AgNO3), a precipitate is formed.
A. Identify the precipitate as AgCl or AgBr.
B. Calculate the minimum concentration of Ag+ at which the precipitate begins to form.
Ksp(AgCl) = 1.8×10–10
Ksp(AgBr) = 5.0×10–13
A solution of two silver salts contains 0.0111 M Cl- and 0.0125 M Br-. Upon addition of a very dilute solution of silver nitrate (AgNO3), a precipitate is formed.
A. Identify the precipitate as AgCl or AgBr.
B. Calculate the minimum concentration of Ag+ at which the precipitate begins to form.
Ksp(AgCl) = 1.8×10–10
Ksp(AgBr) = 5.0×10–13