Anion Exceptions

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Malik Oda 1F
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Joined: Thu Jul 25, 2019 12:15 am

Anion Exceptions

Postby Malik Oda 1F » Tue Dec 03, 2019 3:07 pm

• Very few anions act as acids because it is more difficult for an anion to lose H+
• Exceptions are the anions: HSO4- and H2PO4-

The points above came from the notes. What are HSO4- and H2PO4- exceptions of and why are the considered exceptions?

Anna Wu 1H
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Joined: Sat Aug 17, 2019 12:16 am

Re: Anion Exceptions

Postby Anna Wu 1H » Tue Dec 03, 2019 3:14 pm

Those are exceptions of anions not being able to act as acids. HSO4- and H2PO4- are deprotonated forms of H2SO4 and H3PO4 and can act as extremely weak acids.

Posts: 109
Joined: Sat Sep 07, 2019 12:19 am

Re: Anion Exceptions

Postby Chantel_2I » Tue Dec 03, 2019 11:52 pm

H2SO4- and H2PO4- are anions that can act as acids, whereas most anions do not. Although they have an overall negative charge, they have more H atoms that they can give up.

Avnita C_4B
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Re: Anion Exceptions

Postby Avnita C_4B » Wed Dec 04, 2019 12:59 am

The two compounds are exceptions because they can act as acid and give off H while most anions are not able to due to their charges.

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