Chemistry / Unit 8 Chem 1529 short lesson, about 20 seconds
Strong vs. Weak Electrolytes, Extended to the Van't Hoff Factor
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The idea
Chem 0406's strong-dissociates-completely, weak-dissociates-partially distinction now sets how many particles each dissolved formula unit actually contributes.
In practice
Hydrochloric acid dissociates essentially completely, while acetic acid leaves most molecules un-dissociated at the same concentration, giving each a different effective particle count.
Where people slip
Strong and weak describe how completely a substance dissociates, never how much is dissolved — a weak electrolyte can still be concentrated.
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