IB HL Chemistry Acids and bases Topic 18.2 Calculations involving acids and bases

IB HL Chemistry Acids and bases Topic 18.2 Calculations involving acids and bases
Calculations of acids and bases for HL focusing on weak acids and bases with the acid dissociation constant Ka.

Full set of resources for topic 8:

0:14 Acid dissociation constant Ka (and Kb)
1:09 Application of formula
1:50 Summary of formula
2:52 Example problem pH of weak acid
3:49 Interpreting size of Ka Kb pKa pKb

18.2 Calculations involving acids and bases HL
• The expression for the dissociation constant of a weak acid (Ka) and a weak base (Kb).
• For a conjugate acid base pair, Ka × Kb = Kw.
• The relationship between Ka and pK a is (pK a = -log Ka), and between Kb and pKb is (pKb = -log Kb).
• Solution of problems involving [H+(aq)], [OH–(aq)], pH, pOH, Ka, pKa, Kb and pKb.
• Discussion of the relative strengths of acids and bases using values of Ka, pKa, Kb and pKb.

Connect with me: