HW 6A.3 Part C

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905385366
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Joined: Sat Jul 20, 2019 12:16 am

HW 6A.3 Part C

Postby 905385366 » Wed Dec 04, 2019 11:51 pm

For this problem you are prompted to write the chemical equation for the proton transfer equilibria of the following acids in aqueous solution and identify the conjugate acid-base pair.
Part C is H2PO4-
Why is the pair H2PO4- and HPO4-2 instead of H2PO4- and H3PO4?

sarahwu3a
Posts: 50
Joined: Sat Aug 17, 2019 12:17 am

Re: HW 6A.3 Part C

Postby sarahwu3a » Thu Dec 05, 2019 2:14 am

They want you to write the equations as if the acid they give you is the acid. If you treat H2PO4 as the acid, HPO42- will be the conjugate base.

Margaret Xu 3C
Posts: 65
Joined: Wed Sep 30, 2020 9:36 pm

Re: HW 6A.3 Part C

Postby Margaret Xu 3C » Thu Dec 10, 2020 12:49 am

I made the same mistake, but the problem states that H2PO4- is acidic in this scenario so we have to remove the H+ and it forms a conjugate base.


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