Conjugate Acid and Base

[Cristian Carrasco 1F]

How do you find the conjugate acid and base? For example, whats the conjugate acid of CH3NH2?

[SitharaMenon2B]

You can find the conjugate acid by adding an H+, since when a base accepts a proton it it becomes the conjugate acid. When an acid donates a proton it would become a conjugate base, so you would fine the conjugate base by removing an H+.

[Lindsay H 2B]

The conjugate acid is usually the initial base plus H+; and the conjugate base is the initial acid minus H+. I think this makes them easier to identify in a chemical equation

[Essly Mendoza 1J]

Hi guys, what's the difference between a conjugate acid and a weak acid and a conjugate base and a weak base? Thanks.

[Sheel Shah 1H]

@Essly Medoza
A conjugate acid is the ionized form of a base (with the hydrogen added to it giving it acidic properties); a weak acid is simply an acid as the original reactant which has a low dissociation value (it does not readily ionize in solution, so it has a low Ka value). Similarly a conjugate base is the result of an acid in the reactant side losing its hydrogen and becoming a base, whereas a weak base does not pick up hydrogens in solution readily.

[Courtney Cheney 3E]

We learned today in my class that congregate bases and conjugate acids can actually change the pH of a solution if they are conjugates of weak bases/acids... Does this mean that all salts formed from weak acids/ bases will have the ability to change the pH of a neutral solution?