1. Unit 5: Acid-Base Calculations Lesson 2: Relative Acid/Base Strengths

2. Ka and Kb for Conjugate Pairs
For a conjugate pair,
Ka (conjugate acid) X Kb (conjugate base) = Kw
Example: What is the Kb value for H2PO4-?
Practice: Pg. 130 #35(a, c, e) and #36
15 min

3. Brain Break!

4. Weak vs. Strong: The Equilibrium Battle
Example: If solutions containing H2CO3 and SO32- are mixed, what is the resulting equilibrium, and which side is favoured?
Your turn: When HS- and HCO3- are mixed, does the resulting equilibrium favour reactants or products?
20 min

5. Homework:
Pg. 133 #40 odd letters
5 min