Amphoteric vs amphiprotic

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904940852
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Joined: Fri Sep 29, 2017 7:07 am

Amphoteric vs amphiprotic

Postby 904940852 » Thu Dec 07, 2017 4:13 am

What is the difference between the two, and what do each mean/ tell?

Angel Gomez 1K
Posts: 36
Joined: Fri Sep 29, 2017 7:04 am

Re: Amphoteric vs amphiprotic

Postby Angel Gomez 1K » Thu Dec 07, 2017 10:21 am

Amphoteric refers to the ability of X, a compound, to act as both a base and an acid. For example, in the chemical equation , water acts as both an acid (whose conjugate base is hydroxide, OH-) and as a base (whose conjugate acid is hydronium, H30+). To be amphiprotic is to have the ability to donate an electron or receive an electron. For that reason, all amphiprotic substances must have a Hydrogen atom available to donate. In the above example, water may also be considered amphiprotic, as it both: 1) loses a proton (hydrogen atom) to form OH- and 2) donates a proton to form H30+.
Another example of an amphiprotic compound is hydrogen sulfate, HSO4-. It can receive a proton to become sulfuric acid, H2SO4, or it can lose a proton to become sulfate, SO42-.
Often, both terms will be used interchangeably because all amphiprotic compunds are also amphoteric. Hope this helps clear that up!

Clara Hu 1G
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Re: Amphoteric vs amphiprotic

Postby Clara Hu 1G » Thu Dec 07, 2017 12:42 pm

Also, on the periodic table, there is a diagonal band of amphoteric oxides found between the metal oxides (bases) and nonmetal oxides (acids) that form amphoteric compounds.


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