A solution of NaF is added dropwise to a solution that is 0.0614 M in Mg2+ and 3.53e-05 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) Which cation precipitates first? O Mg2+ O y³+ (c) 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 0.0614 M in Mg2+ and 3.53e-05 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) Which cation precipitates first? O Mg2+ O y³+ (c) What is the concentration of F" when the second cation begins to precipitate? [F] = M.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter15: Complex Ion And Precipitation Equilibria

Section: Chapter Questions

Problem 76QAP

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