Acid Strength

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Tracey Tran 3I
Posts: 50
Joined: Thu Jul 11, 2019 12:16 am

Acid Strength

Postby Tracey Tran 3I » Sun Dec 01, 2019 2:39 am

Why does increasing the number of oxygen atoms make the acid stronger?

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Acid Strength

Postby RasikaObla_4I » Sun Dec 01, 2019 8:46 am

In oxacids, increasing the number of oxygen atoms distributes the negative charge over more atoms so the proton is less attracted to only one oxygen so the acid becomes stronger.

Kaitlyn Ang 1J
Posts: 116
Joined: Fri Aug 09, 2019 12:17 am
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Re: Acid Strength

Postby Kaitlyn Ang 1J » Sun Dec 01, 2019 8:49 am

Similarly, if there are atoms with more electronegativity, they result in a stronger acid because the more electronegative atoms are “better at pulling” the electron density away from the oxygens and spread more evenly across the molecule.

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: Acid Strength

Postby MaggieHan1L » Sun Dec 01, 2019 3:19 pm

My TA explained it as those molecules having more resonance usually and thus without the proton they are more stable so they are more willing to be dissociated. At least this is how I understood it.


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