A 1250 mL solution contains 0.400 M KCгO, and 0.400 M Na₂SO. A 4 concentrated Ba(NO3), solution is slowly added to the solution. What is the barium ion concentration at the point when a precipitate just starts to form? (K BaCro₁ = 8.5x10¹ and K BaSO = 2.3×108) M sp sp Question 7 Calculate [Cu*] and [CN] in a 0.300 M solution of [Cu(CN)₂]¯ (K = 1.9x10¹6) [Cu+] = M [CN] = M Juus S

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Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.100QP: A solution contains 0.00740 M calcium ion. A concentrated sodium fluoride solution is added dropwise...
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Question
A 1250 mL solution contains 0.400 M KCгO, and 0.400 M Na₂SO. A
4
concentrated Ba(NO3), solution is slowly added to the solution. What is the
barium ion concentration at the point when a precipitate just starts to form? (K BaCro₁ =
8.5x10¹ and K BaSO = 2.3×108)
M
sp
sp
Question 7
Calculate [Cu*] and [CN] in a 0.300 M solution of [Cu(CN)₂]¯
(K = 1.9x10¹6)
[Cu+] =
M
[CN] =
M
Juus
S
Transcribed Image Text:A 1250 mL solution contains 0.400 M KCгO, and 0.400 M Na₂SO. A 4 concentrated Ba(NO3), solution is slowly added to the solution. What is the barium ion concentration at the point when a precipitate just starts to form? (K BaCro₁ = 8.5x10¹ and K BaSO = 2.3×108) M sp sp Question 7 Calculate [Cu*] and [CN] in a 0.300 M solution of [Cu(CN)₂]¯ (K = 1.9x10¹6) [Cu+] = M [CN] = M Juus S
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