2. A solution is 0.10M in Mg(NO3)2. a. What conce ntration of OH is required to just start precipitation of Mg(OH)2? (Ksp 1.5x1011) b. If NH3/NH4* buffer is used to control the pH, and [NH3] = 0.10 M, what concentration of NH4* is required to prevent the precipitation of Mg(OH)2?

2. A solution is 0.10M in Mg(NO3)2. a. What conce ntration of OH is required to just start precipitation of Mg(OH)2? (Ksp 1.5x1011) b. If NH3/NH4* buffer is used to control the pH, and [NH3] = 0.10 M, what concentration of NH4* is required to prevent the precipitation of Mg(OH)2?

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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Question

2. A solution is 0.10M in Mg(NO3)2.
a. What conce ntration of OH is required to just start precipitation
of Mg(OH)2? (Ksp 1.5x1011)
b. If NH3/NH4* buffer is used to control the pH, and [NH3] = 0.10
M, what concentration of NH4* is required to prevent the
precipitation of Mg(OH)2?

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