Pka

Acidity
Basicity
The Conjugate Seesaw

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Marni Kahn 1A
Posts: 107
Joined: Thu Jul 25, 2019 12:17 am
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Pka

Postby Marni Kahn 1A » Mon Dec 02, 2019 1:57 pm

What does the Pka tell us that the pka doesn't?

xenamclean_1G
Posts: 51
Joined: Sat Jul 20, 2019 12:15 am

Re: Pka

Postby xenamclean_1G » Mon Dec 02, 2019 2:55 pm

A large Ka value indicates a strong acid because it means the acid is largely dissociated into its ions. A small Ka value means little of the acid dissociates, so you have a weak acid. The pKa gives the same information, just in a different way. The smaller the value of pKa, the stronger the acid.

AKhanna_3H
Posts: 104
Joined: Wed Sep 18, 2019 12:19 am

Re: Pka

Postby AKhanna_3H » Mon Dec 02, 2019 3:57 pm

large Ka/small pKa = strong acid
small Ka/large pKa = weak acid


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