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Module 5 Acids, Bases, and Solubility Equilibrium

 

CHEM-1312 M5L2 Explore: Mixing Acids and Bases

 

Module Competencies

A ★ indicates that this page contains an activity related to that LO.

CC5.1 Compare the properties of acid and bases to determine strength and solubility

LO5.1.1 Define the properties of acid and bases

★ LO5.1.2 Demonstrate how the mixing of acids and bases affect equilibria and solubility

 

Readings

What You Will Learn

  • Homogeneous versus Heterogeneous Solution Equilibria
    • Reviewing how to describe reactions that have materials in different phases of state.
  • The Common Ion Effect
    • We continue our study of acid-base properties and reactions from Chapter 15 by considering the effect of common ions on the extent of acid ionization and hence the pH of the solution. (16.2)
    • Buffer Solutions
      • We then extend our discussion to buffer solutions, whose pH remains largely unchanged upon the addition of small amounts of acids and bases. (16.3)
    • Acid-Base Titrations
    • Acid-Base Indicators
      • We conclude our study of acid-base chemistry by examining acid-base titration in more detail. We learn to calculate the pH during any stage of titration involving strong and/or weak acids and bases. In addition, we see how acid-base indicators are used to determine the end point of a titration. (16.4 and 16.5)
    • Solubility Equilibria
    • Separation of Ions by Fractional Precipitation
    • The Common Ion Effect and Solubility
      • Next, we explore a type of heterogeneous equilibrium, which deals with the solubility of sparingly soluble substances. We learn to express the solubility of these substances in terms of solubility product. We see that different types of metal ions can be effectively separated depending on their differing solubility products. (16.6 and 16.7)
    • pH and Solubility
      • We then see how Le Châtelier’s principle helps us explain the effects of common ions and pH on solubility. (16.8 and 16.9)
    • Complex Ion Equilibria and Solubility
      • We learn how complex ion formation, which is a type of Lewis acid-base reaction, can enhance the solubility of an insoluble compound. (16.10) 
    • Application of the Solubility Product Principle to Qualitative Analysis
      • Finally, we apply the solubility product principle to qualitative analysis, which is the identification of ions in solution. (16.12)
  • We learn how complex ion formation, which is a type of Lewis acid-base reaction, can enhance the solubility of an insoluble compound. (16.10) 
  • Application of the Solubility Product Principle to Qualitative Analysis
    • Finally, we apply the solubility product principle to qualitative analysis, which is the identification of ions in solution. (16.12)

    What to Read

    Overby/Chang: Chemistry, 14th Ed. - Chapter 16

     

    Media

    Acid-Base Equilibria and Solubility Equilibria

    Time: 3:12 min.

    Topics:

     

    Common Ion Effect

    Time: 2:31 min.

    Topics:

     

    Supplemental Resources

    An extremely flexible and informative periodic table: Periodic table

    Periodic Table: Offline Version