A solution of NaF is added dropwise to a solution that is 0.0660 M in Mg2+ and 1.96e-08 M in Y3+. The Ksp of MgF2 is 5.16e-11. The Ksp of YF3 is 8.62e-21. (a) What concentration of F- is necessary to begin precipitation? (Neglect volume changes.) [F-] = ______ M. (b) What is the concentration of F- when the second cation begins to precipitate? [F-] =______ M.
A solution of NaF is added dropwise to a solution that is 0.0660 M in Mg2+ and 1.96e-08 M in Y3+. The Ksp of MgF2 is 5.16e-11. The Ksp of YF3 is 8.62e-21. (a) What concentration of F- is necessary to begin precipitation? (Neglect volume changes.) [F-] = ______ M. (b) What is the concentration of F- when the second cation begins to precipitate? [F-] =______ M.
General Chemistry - Standalone book (MindTap Course List)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.85QP: A 3.20-L solution of 1.25 103 M Pb(NO3)2 is mixed with a 0.80-L solution of 5.0 101 M NaCl....
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A solution of NaF is added dropwise to a solution that is 0.0660 M in Mg2+ and 1.96e-08 M in Y3+.
The Ksp of MgF2 is 5.16e-11.
The Ksp of YF3 is 8.62e-21.
(a) What concentration of F- is necessary to begin precipitation? (Neglect volume changes.)
[F-] = ______ M.
(b) What is the concentration of F- when the second cation begins to precipitate?
[F-] =______ M.
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