In this lesson you will be introduce to the concept of acid and base dissoiciation/ionization as well as the relationship between Ka, Kb and Kw.
By the end of this students should be able to:
- explain the concept of weak acid dissociation/ionization and weak base ionization.
- identify strong and weak acids using the Table of relative strengths of acids and bases
- calculate the acid dissociation constant of a weak acid.
- determine the percent dissociation of a weak acid.
- determine the percent ionization of a weak base.
- demonstrate how Ka, Kb and Kw are related.
- solve problems involving pH, pOH, percent dissociation, Ka, Kb and Kw
Let’s start by examining Acid Base strength in the video lesson below. Please take down notes as you watch.
Below is worksheet with a series of problems involving Acid Base strength, Ka, Kb, pH, pOH and percent dissociation. Please solve them on a separate piece of paper and compare your answers against the answer key included.
The video lesson below explains base ionization and how Ka, Kb and Kw are related. It also explains how you can use this relationship to solve problems when either constant is given and you must find the value of the missing constant without using the table of Relative Strengths of Acids and Bases. Watch it and take down notes.