Asked by Ai
You have prepared a 1.50 M ZnCl2 solution. The pH must be below what value to avoid precipitation of zinc hydroxide in the solution? The solubility product of Zn(OH)2 is 3.0 x 10−16.
Answers
Answered by
DrBob222
Zn(OH)2 ----> Zn^2+ + 2OH^-
Ksp = 3E-16 = (Zn^2+)(OH^-)^2
Plug in 1.5M = (Zn^2+) and solve for (OH^-) and convert that to pH. Post your work if you get stuck.
Ksp = 3E-16 = (Zn^2+)(OH^-)^2
Plug in 1.5M = (Zn^2+) and solve for (OH^-) and convert that to pH. Post your work if you get stuck.
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