Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
  1. To a concentrated buffer of pH 9.0 was added an equal volume of an aqueous solution that was 0.20 M in each of the ions Ca2+, Cd2+, and Cu2+. The expected precipitate would consist of:

 

salt:    calcium hydroxide    cadmium hydroxide   copper(II) hydroxide

Ksp:        4.0 × 10-6               2.0 × 10-14                   1.8 × 10-19

 

  1. only Ca(OH)2
  2. only Cd(OH)2
  3. only Cu(OH)2
  4. only Cd(OH)2and Cu(OH)2
  5. Ca(OH)2, Cd(OH)2, and Cu(OH)2
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