A solution of Na3AsO4 is added dropwise to a solution that is 0.0576 M in Cu2+ and 0.000398 M in Ag+.The Ksp of Cu3(AsO4)2 is 7.95e-36.The Ksp of Ag3AsO4 is 1.03e-22.(a) What concentration of AsO43- is necessary to begin precipitation? (Neglect volume changes.)[AsO43-] = ______M.(b) Which cation precipitates first?Cu2+Ag+ (c) What is the concentration of AsO43- when the second cation begins to precipitate?[AsO43-] = _____M.

A solution contains 0.0576 M Cu2+ and 0.000398 M Ag+ ions in which Na3AsO4 was added dropwise .The…

Answered: A solution of Na3AsO4 is added dropwise…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A solution of Na₃AsO₄ is added dropwise to a solution that is 0.0576 M in Cu²⁺ and 0.000398 M in Ag⁺.

The K_sp of Cu₃(AsO₄)₂ is 7.95e-36.
The K_sp of Ag₃AsO₄ is 1.03e-22.

(a) What concentration of AsO₄^3- is necessary to begin precipitation? (Neglect volume changes.)

[AsO₄^3-] = ______M.

(b) Which cation precipitates first?

Cu²⁺Ag⁺

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