# Problem: A solution is formed by mixing 50.0 mL of 10.0 M NaX with 50.0 mL of 2.0 X 10  -3 M CuNO3. Assume that Cu+ form complex ions with X - as follow:Cu+(aq) + X -(aq) ⇌ CuX(aq)             K  1 = 1.0 X 10 2CuX(aq) + X -(aq) ⇌ CuX2-(aq)          K 2 = 1.0 X 104CuX2-(aq) + X -(aq) ⇌ CuX32-(aq)     K 3 = 1.0 X 103with an overall reactionCu+(aq) + 3X-(aq) ⇌ CuX32-(aq)       K = 1.0 X 10 9Calculate the following concentration at equilibrium.b. CuX2-

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A solution is formed by mixing 50.0 mL of 10.0 M NaX with 50.0 mL of 2.0 X 10  -3 M CuNO3. Assume that Cu+ form complex ions with X - as follow:

Cu+(aq) + X -(aq) ⇌ CuX(aq)             K  1 = 1.0 X 10 2

CuX(aq) + X -(aq) ⇌ CuX2-(aq)          K 2 = 1.0 X 104

CuX2-(aq) + X -(aq) ⇌ CuX32-(aq)     K 3 = 1.0 X 103

with an overall reaction

Cu+(aq) + 3X-(aq) ⇌ CuX32-(aq)       K = 1.0 X 10 9

Calculate the following concentration at equilibrium.

b. CuX2-

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Our tutors have indicated that to solve this problem you will need to apply the Formation Constant concept. If you need more Formation Constant practice, you can also practice Formation Constant practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.