Let’s Practice Solving Weak Base Problems! AP Chem Topic 8.3c | AP Chemistry Unit 8, Topic 3

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In this video, Mr. Krug shows students how to recognize formulas for weak bases. Then, he shows students how to use the base dissociation constant, also known as Kb, to determine the pOH and pH for a weak base, while also calculating percent dissociation. He discusses the relationship between Ka and Kb, then shows the relationship between the strength of a weak acid and the strength of its conjugate base. He also shows how students can predict whether an ionic compound, sometimes called a salt, will be acidic, basic, or neutral in solution.

00:00 Introduction
00:41 Recognizing Weak Bases
01:58 Practice Problem No 1
06:56 Practice Problem No 2
09:40 Relationship Between Ka and Kb
10:41 Practice Problem No 3
13:14 Practice Problem No 4
16:30 Ionic Salts – Acidic or Basic?
19:46 Conclusion