Dissociation of Acids/base

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JasmineChavez 1E
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

Dissociation of Acids/base

Postby JasmineChavez 1E » Mon Nov 23, 2015 8:14 pm

Why don't weak acids completely dissociate and strong acids do even though a weaker acid also has a weaker bond? I would assume that with a weaker bond it would be easier to dissociate but that is not the case and I am not sure why or what key concept I am missing here

Katie Oakes 2I
Posts: 25
Joined: Fri Sep 25, 2015 3:00 am

Re: Dissociation of Acids/base

Postby Katie Oakes 2I » Mon Nov 23, 2015 11:12 pm

Strong acids and bases typically have the most polar bonds. While this can be seen as a stronger bond, it also means the acid or base will dissolve/dissociate completely in water as water is polar and dissolves polar molecules. Weak acids and bases are often organic molecules and have non-polar bonds. Water cannot dissolve non-polar molecules ("like dissolves like" rule) so these weak acids and bases dissociate only slightly.

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