amphiprotic vs. amphoteric  [ENDORSED]

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Stephanie tran 1J
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Joined: Fri Sep 29, 2017 7:04 am

amphiprotic vs. amphoteric

Postby Stephanie tran 1J » Sun Dec 10, 2017 3:57 pm

according to the textbook definition, amphiprotic specifically pertains to water molecules, but I noticed In the homework problems that amphiprotic referred to other compounds as well acting as both proton donors and acceptors; What's the main difference between amphiprotic and amphoteric and is amphiprotic more prevalent to acids and bases?

Cynthia Tsang
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Re: amphiprotic vs. amphoteric

Postby Cynthia Tsang » Sun Dec 10, 2017 4:42 pm

They are similar but amphiprotic is more specific. Amphiprotic is when something can donate or receive a proton. Amphoteric is when something can act as an acid or a base.

Kyung_Jin_Kim_1H
Posts: 53
Joined: Thu Jul 27, 2017 3:00 am

Re: amphiprotic vs. amphoteric  [ENDORSED]

Postby Kyung_Jin_Kim_1H » Sun Dec 10, 2017 6:27 pm

An example of what Stephanie said would be water. Water is amphoteric because:
Water as a base:
Water as an acid:
In the above reactions, H+ is being donated/accepted. Hence, water is not only amphoteric, but also amphiprotic.
Other examples of amphiprotic compounds are would be and amino acids with carboxyl groups (--COOH) groups.

On the other hand, while Al2O3 reacts with both acids and bases, it cannot by definition be amphiprotic since it doesn't have H.


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