Amphiprotic vs Amphoteric

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Gisela F Ramirez 2H
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

Amphiprotic vs Amphoteric

Postby Gisela F Ramirez 2H » Sun Dec 09, 2018 4:05 am

How can you figure out when a compound is amphiprotic or amphoteric? Is there anything specific i should be looking for?

Matthew Tran 1H
Posts: 165
Joined: Fri Sep 28, 2018 12:16 am

Re: Amphiprotic vs Amphoteric

Postby Matthew Tran 1H » Sun Dec 09, 2018 9:17 am

A species that is amphoteric can act as a acid or a base. Dr. Lavelle mentioned in class how there are a diagonal band of amphoteric oxides that closely matches the diagonal band of metalloids. You would have to look at whether or not it can react with both acids and bases in a neutralization reaction. A species that is amphiprotic can either donate or accept a proton. Therefore, an amphiprotic species is amphoteric by the Bronsted definition of acids and bases. A very common example of this is water. It can accept a proton to form a hydronium ion or it can donate a proton to form a hydroxide ion. Water thus is amphiprotic and amphoteric.

MaggieMatern_Dis1H
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Amphiprotic vs Amphoteric

Postby MaggieMatern_Dis1H » Sun Dec 09, 2018 9:21 am

amphiprotic and amphoteric refer to the Bronsted and Lewis defintions of acids and bases, respectively. Therefore look to see if it gives/receives a proton and is an electron pair donor/acceptor.

Aakash Tammana 3H
Posts: 18
Joined: Wed Nov 15, 2017 3:02 am

Re: Amphiprotic vs Amphoteric

Postby Aakash Tammana 3H » Sun Dec 09, 2018 10:30 am

They’re different definitions (bronstead/lewis) of the same type of acid/base

Emily Kennedy 4L
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Joined: Fri Sep 28, 2018 12:25 am
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Re: Amphiprotic vs Amphoteric

Postby Emily Kennedy 4L » Sun Dec 09, 2018 10:33 am

amphiprotic can donate and accept protons
amphoteric react as both acids and bases

Manas_Varma_4B
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: Amphiprotic vs Amphoteric

Postby Manas_Varma_4B » Sun Dec 09, 2018 2:18 pm

Amphiprotic means that the compound can both accept and donate electrons; while amphoteric means that the compounds can react as both acids and bases.


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