Advanced Higher Chemistry 13 Strong & Weak acids/bases, and pH calculation
Channel: Andrew Hay
Date: 2021-11-15

In the power struggle of acids & bases, some are weaker than others. What does this mean for their properties and reactions? SQA p67-68
Also, why the small p and capital H in pH? Can you calculate it? What are the limits?
0:00 Intro
0:38 Strong/weak definition and examples
5:46 weak isn't the same as dilute
7:00 Ka expression
8:22 Some example values
9:52 Properties strong vs weak
11:30 Keeping it fair
11:58 Surprise!
13:25 Bronsted Lowry definitions
14:05 Reaction details & water's weird again
15:43 Today's word: amphoteric
16:16 Conjugate acids & bases
17:55 pH of strong acids
19:47 pH limit ?
20:38 pH change needs a lot of dilution!
21:12 simple example
21:40 What about pH of alkalis?
23:17 pH of weak acids
26:06 A neutral solution may not be pH7?