A solution of Na3AsO4 is added dropwise to a solution that is 0.0762 M in Bi³+ and 0.000402 M in Cd²+.3-(a) What concentration of AsO4³ is necessary to begin precipitation? (Neglect volume changes.)[AsO43-] = 2.34e-15X M.(b) Which cation precipitates first?O Bi³+Cd²+(c) What is the concentration of AsO4³ when the second cation begins to precipitate?[AsO4³-] =X M.The Ksp of BIASO4 is 4.43e-10.The Ksp of Cd3(AsO4)2 is 2.2e-33.

[Bi3+] = 0.0762 M [Cd2+] = 0.000402 M

A solution of Na3ASO4 is added dropwise to a solution that is 0.0762 M in Bi- and 0.000402 M In (a) What concentration of ASO4³ is necessary to begin precipitation? (Neglect volume changes.) [ASO4³] = 2.34e-15 X M. (b) Which cation precipitates first? OBI3+ Cd²+

A solution of Na3ASO4 is added dropwise to a solution that is 0.0762 M in Bi- and 0.000402 M In (a) What concentration of ASO4³ is necessary to begin precipitation? (Neglect volume changes.) [ASO4³] = 2.34e-15 X M. (b) Which cation precipitates first? OBI3+ Cd²+

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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Question

A solution of Na3AsO4 is added dropwise to a solution that is 0.0762 M in Bi³+ and 0.000402 M in Cd²+.
3-
(a) What concentration of AsO4³ is necessary to begin precipitation? (Neglect volume changes.)
[AsO43-] = 2.34e-15
X M.
(b) Which cation precipitates first?
O Bi³+
Cd²+
(c) What is the concentration of AsO4³ when the second cation begins to precipitate?
[AsO4³-] =
X M.
The Ksp of BIASO4 is 4.43e-10.
The Ksp of Cd3(AsO4)2 is 2.2e-33.

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