A solution of Na ASO4 is added dropwise to a solution that is 0.0311 M in Cu²+ and 0.000293 M in Ag*. (a) What concentration of As0,³ is necessary to begin precipitation? (Neglect volume changes.) [AsO4³] [ M. (b) Which cation precipitates first? Cu²+ O Ag (c) What is the concentration of AsO, when the second cation begins to precipitate? [AsO³)=[ M. The Ksp of Cus(AsO4)2 is 7.95e-36. The Kup of Ag Aso, is 1.03e-22.

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A solution of Na3ASO4 is added dropwise to a solution that is 0.0311 M in Cu²+ and 0.000293 M in Ag*.
(a) What concentration of AsO4³ is necessary to begin precipitation? (Neglect volume changes.).
[ASO4³]|
M.
(b) Which cation precipitates first?
Ⓒ Cu²+
O Ag*
(c) What is the concentration of AsO4³ when the second cation begins to precipitate?
[AsO₂³) =
M.
The Ksp of Cu3(ASO4)2 is 7.95e-36.
The Kap of Ag Aso, is 1.03e-22.
Transcribed Image Text:A solution of Na3ASO4 is added dropwise to a solution that is 0.0311 M in Cu²+ and 0.000293 M in Ag*. (a) What concentration of AsO4³ is necessary to begin precipitation? (Neglect volume changes.). [ASO4³]| M. (b) Which cation precipitates first? Ⓒ Cu²+ O Ag* (c) What is the concentration of AsO4³ when the second cation begins to precipitate? [AsO₂³) = M. The Ksp of Cu3(ASO4)2 is 7.95e-36. The Kap of Ag Aso, is 1.03e-22.
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