(b) When NH3 is added to aqueous CuSO4, the complex [Cu(OH2)2(NH3)4]*+ is ultimately formed. Initially, however, addition of NH3 results in the formation of a precipitate of Cu(OH)2 (Ksp=2.20 x 10 20). What is the origin of [OH]¯ ions in this solution, and why does Cu(OH)2 form? [Other data: for NH3, K=1.8×101 %3D -5

(b) When NH3 is added to aqueous CuSO4, the complex [Cu(OH2)2(NH3)4]*+ is ultimately formed. Initially, however, addition of NH3 results in the formation of a precipitate of Cu(OH)2 (Ksp=2.20 x 10 20). What is the origin of [OH]¯ ions in this solution, and why does Cu(OH)2 form? [Other data: for NH3, K=1.8×101 %3D -5

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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If 2.50 g of CuSO4 is dissolved into 9.0 x 10² mL of 0.30 M NH3, what are the concentrations of Cu²+, [Cu(NH3)4]2+, and NH3 at equilibrium? Note: K₁ for [Cu(NH3)4]2+ is 5.0 × 1013.
A solution containing copper(II) nitrate (aq) first has some aqueous ammonia added to it. A white precipitate forms. Addition of more aqueous ammonia results in the precipitate dissolving, forming a clear dark blue solution. Write reactions for each step in the process. Hints: Ksp Cu(OH)2 = 2.2 X 10-20; Kb NH3 = 1.8 X 10-5 and Kf Cu(NH3)42+ = 1.1 X 1013
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