1. Module 8

1.27. Page 6

Lesson 5

Module 8—Acid-Base Equilibrium

Lesson Summary

 

In Lesson 5 you considered the following questions:

  • What are Ka, Kb, and Kw?
  • How do Ka and Kb explain the position of the equilibrium of aqueous acids and bases?
  • How are values for Ka and Kb used to calculate the pH of solutions containing weak acids and bases?

In this lesson you used your knowledge of equilibrium systems and the ionization constants for acids (Ka), bases (Kb), and water (Kw) to analyze aqueous systems containing either acids or bases. You also used ICE tables and, where applicable, approximations to calculate equilibrium concentrations for weak acids and bases. These calculations enabled to you predict the pH of solutions containing weak acids and bases.

 

In the next lesson you will continue to investigate the equilibrium relationships of weak acids and bases as you investigate pH curves.