What is pKa and pKb? Theory & Calculation // HSC Chemistry

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⌚Timestamp
00:00 Brønsted Lowry and Arrhenius Acid Theory Recap
01:52 Acid Dissociation Constant Ka
03:21 pKa
03:53 relationship between Ka and pKa
04:26 Example 1: Calculating Ka from [H+]
06:19 Example 2: Calculating Ka given pH
08:21 Definition of pKa and its relationship to degree of ionisation
11:17 Example 3: Calculating pH given pKa
15:12 Degree of ionisation vs Ka/pKa as an indicator of strength
15:47 Brønsted Lowry and Arrhenius Base Theory Recap
16:59 Base Dissociation Constant Kb
17:53 Relationship between pKa and pKb
19:08 pKa/pKb vs pH/pOH as indicators of strength

📚Syllabus
• calculate and apply the dissociation constant (Ka) and pKa (pKa =–log10 (Ka)) to determine the difference between strong and weak acids (ACSCH098)