Acid Deprotonation

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Stuti Pradhan 2J
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Joined: Wed Sep 30, 2020 9:32 pm
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Acid Deprotonation

Postby Stuti Pradhan 2J » Mon Dec 07, 2020 10:37 am

Why does the acid deprotonate when the pka<pH?

Kiran Singh 3A
Posts: 90
Joined: Wed Sep 30, 2020 9:41 pm

Re: Acid Deprotonation

Postby Kiran Singh 3A » Mon Dec 07, 2020 10:43 am

If the pKA value is lower, meaning the KA value is higher, the acid is stronger (if pKA<pH). A stronger acid is almost completely ionized in water, so it will deprotonate. On the other hand, if the pKA value is higher, meaning the KA value is lower, the acid is weaker. A weaker acid does not completely ionize in water, so it will be protonated (keep its H). Hope this helps.

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