Acids and Bases

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Mariah Hill
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Joined: Fri Sep 28, 2018 12:28 am

Acids and Bases

Postby Mariah Hill » Sun Nov 04, 2018 11:15 pm

Is there a way to know if a compound is an acid or a base by purely looking at the Lewis structure?

Posts: 20
Joined: Fri Apr 06, 2018 11:03 am

Re: Acids and Bases

Postby Haowen_Liang_3E » Sun Nov 04, 2018 11:42 pm

Lewis acids accept electrons, and Lewis bases donate electrons. If the molecule has an H+ ion in its structure, then it can take some e- and therefore it is a Lewis acid.

Ester Garcia 1F
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Joined: Fri Sep 28, 2018 12:17 am

Re: Acids and Bases

Postby Ester Garcia 1F » Sun Nov 04, 2018 11:56 pm

A Lewis structure of an acid would have many electrons (nearly a full octect) since Lewis acids accept electrons and it is more likely to gain a couple electrons then get rid of all the electrons in order to complete an octet. On the other hand, a lewis structure of a base would have few electrons since Lewis bases donate electrons meaning they have fewer electrons making it easier to donate them.

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Re: Acids and Bases

Postby 705152867 » Mon Nov 05, 2018 1:23 am

Species that donate e= are Lewis bases (e.g. NH3, F-, -OH) and species that accept e= are Lewis acids (e.g. BF3, H+).

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