Buffers

Why Equilibrium?

The study of equilibrium - the movement involved in chemical reactions - accounts for 20% of the AP Chemistry Exam and is fundamental to understanding future units.

Signup for AP Exam (~10)

2/23 Am I an Acid or a base? Ka1, or Ka2?

Agenda

Questions?
Amphiprotic: Am I a going to act like a weak acid or a weak base? (~50)
Work Time (~20)

Absent?

Watch the video notes about Weak bases, Ka, & Kb (~15)

Action Items

Pay for the AP Exam by 3/4

2/24 Salty Behavior

Agenda

Questions?
Strength of acids and bases & pH of "Salts" (~50)
begin teasing out x^2 vs pH loop problems
Work Time (~30)

Absent?

Watch the video notes about Factors affecting acid strength & pH of "Salts"~(15)

Action Items

Pay for the AP Exam by 3/4
Prep for the SPQ tomorrow

2/25 LT: How do an acid and its conjugate base act if they are in the same solution?

Agenda

Questions?
Lab #11: Buffer solutions (~30)
How do an acid and its conjugate base act in the same solution? (~40)
Quiz: Weak Acid & Weak Base behavior (~30)

Absent?

Watch this video about Particle Diagrams for Acid-Base Reactions (~25)

Action Items

Buffer ID Practice
Pay for the AP Exam by 3/4 - OMg that's TUESDAY

3/2 LT: How do I calculate the pH of a buffer solution?

Agenda

Questions?
Buffers & the Henderson–Hasselback equation (~60)
Work Time: Buffers Practice (~30)

Absent?

Complete the video notes about Buffer calculations (~25)

Action Items

Buffers Practice (~30)
Pay for the AP Exam by WEDNESDAY

3/3 LT: What do I need to practice to navigate Acid-Base equilibrium problems?

Agenda

Questions?
In the Buffer Zone - Toolkit solidification (~60)
AP Buffer Problem Practice (~30)
SPQ#3: Pour Together Problems & Calculations (~10)

Absent?

Review the posted notes
Come in early to ask questions about the SPQ tomorrow

Action Items

Pay for the AP Exam by TOMORROW
Finish your Buffer Practice

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