Asked by Jin
Solid NaI is slowly added to a soln that is 0.010M in Cu+ and 0.010M in Ag+.
a. Which compound will begin to precipitate first?
b. Calculate [Ag+] when CuI just begins to precipitate/
c. What percent of Ag+ remains in solution at this point?
a. Which compound will begin to precipitate first?
b. Calculate [Ag+] when CuI just begins to precipitate/
c. What percent of Ag+ remains in solution at this point?
Answers
Answered by
DrBob222
a. Compare Ksp for CuI with Ksp for AgI. obviously, the salt with the smaller Ksp will ppt first.
b.
(Ag^+)(I^-)...Ksp for AgI
----------- = ----------- = about 7E-5
(Cu^+)(I^-)...Ksp for CuI
The value will depned upon the Ksp values you used so the answer should be close to 7E-5 but it may differ somewhat. Then you rearrange the equation to give (Ag^+)= 7E-5(0.01) = ??
c. (amount Ag remaining/original amount)*100 = ??
b.
(Ag^+)(I^-)...Ksp for AgI
----------- = ----------- = about 7E-5
(Cu^+)(I^-)...Ksp for CuI
The value will depned upon the Ksp values you used so the answer should be close to 7E-5 but it may differ somewhat. Then you rearrange the equation to give (Ag^+)= 7E-5(0.01) = ??
c. (amount Ag remaining/original amount)*100 = ??
Answered by
Syazani
Can you just post the full answer for me
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