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Determine the Ksp for each solution.  Cu(OH)2 Ba(OH)2 Mg(OH)2

Determine the Ksp for each solution.  Cu(OH)2 Ba(OH)2 Mg(OH)2

Chemistry
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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Determine the Ksp for each solution. 

  1. Cu(OH)2

  2. Ba(OH)2

  3. Mg(OH)2

**Part 1: pH and Ksp Values of Common Hydroxides** **pH Values** The following table lists the pH values for various metal hydroxides: | Substance | pH | |-----------|------| | Ca(OH)₂ | 12.45 | | Cu(OH)₂ | 5.28 | | Ba(OH)₂ | 13.08 | | Mg(OH)₂ | 9.75 | **Ksp Values** The table below shows the solubility product constant (Ksp) values at 25°C for the same set of metal hydroxides: | Substance | Ksp value at 25°C | |-----------|--------------------| | Ca(OH)₂ | 8.0x10⁻⁶ | | Cu(OH)₂ | 2.2x10⁻²⁰ | | Ba(OH)₂ | 8.0x10⁻³ | | Mg(OH)₂ | 1.2x10⁻¹¹ | **Explanation:** - **pH Values:** The pH values indicate the level of basicity or acidity of each hydroxide solution. Higher pH values are indicative of stronger bases. - **Ksp Values:** The Ksp or solubility product constant offers insight into the extent of solubility for each hydroxide in water at 25°C. Smaller Ksp values indicate lower solubility.
Transcribed Image Text:**Part 1: pH and Ksp Values of Common Hydroxides** **pH Values** The following table lists the pH values for various metal hydroxides: | Substance | pH | |-----------|------| | Ca(OH)₂ | 12.45 | | Cu(OH)₂ | 5.28 | | Ba(OH)₂ | 13.08 | | Mg(OH)₂ | 9.75 | **Ksp Values** The table below shows the solubility product constant (Ksp) values at 25°C for the same set of metal hydroxides: | Substance | Ksp value at 25°C | |-----------|--------------------| | Ca(OH)₂ | 8.0x10⁻⁶ | | Cu(OH)₂ | 2.2x10⁻²⁰ | | Ba(OH)₂ | 8.0x10⁻³ | | Mg(OH)₂ | 1.2x10⁻¹¹ | **Explanation:** - **pH Values:** The pH values indicate the level of basicity or acidity of each hydroxide solution. Higher pH values are indicative of stronger bases. - **Ksp Values:** The Ksp or solubility product constant offers insight into the extent of solubility for each hydroxide in water at 25°C. Smaller Ksp values indicate lower solubility.
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