The APsolute RecAP: Chemistry Edition - Episode 62: Molecular Structure and Acid Strength
Description
All hydrohalic acids, but hydrofluoric acid, are strong acids. Why is that (0:31 )? Strong acids fully dissociate and have a large Ka, weak acids only dissociate to a small percentage (1:20 ). When looking at strength, we are comparing the stability of the conjugate acid/base pair partners (2:00 ). For binary acids across a period (2:37 ) as well as down a group (3:09 ) electronegativity determines acid strength. For oxyacids, we can compare acids with different numbers of oxygen atoms, which affects the inductive effect, as well as resonance structures (4:58 ). We can also discuss acid strength across a period (6:44 ) and down a group (7:34 ). Bases are proton acceptors. Common bases are conjugate bases of weak acids, like carboxylic acids, and amines (7:53 ).
Question of the Day: Acid A has a Ka = 3.5 x 10-8, acid B has a Ka = 1.2 x 10-2. Which acid is HClO, which one is HClO2?
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