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Fundamentals J.1 Bronsted Acids and Bases

Posted: Sun Dec 02, 2018 8:58 pm
by Josephine Chan 1B
How can you tell if a compound is a bronsted acid or base without looking at the chemical equation? I know an acid loses a proton and a base gains one, but how can you tell if it loses or gains one in the first place?

Re: Fundamentals J.1 Bronsted Acids and Bases

Posted: Sun Dec 02, 2018 9:55 pm
by Jonathan Omens 1K
There are certain characteristics to acids and bases that are good to remember. For example, a compound consisting of one hydrogen and one halogen will always be a strong acid.

Molecules with group 1 or 2 metals and an OH group will be basic.
Also, any compound with an N atom that has a lone pair will be a weak base such as NH3.

Re: Fundamentals J.1 Bronsted Acids and Bases

Posted: Sun Dec 02, 2018 10:09 pm
by Angela Cong 3C
The lewis structures could also help you visualize which atoms give or receive an electron. Depending on the lone pairs and the electronegativity of the atom you can get an idea of which ones will be more likely to donate.