Conjugate Acids and Bases

[105719095]

How do you find the conjugate acid of a compound?
For example, in textbook problem, 6A.1, how do you find the conjugate acid of CH3NH2?

[Tomas Burgess 3F]

Hi! The conjugate acid of a compound can be found simply by adding a H atom to the compound. Therefore, the conjugate acid of CH3NH2 is CH3NH3+. In general, you can think of a conjugate acid - base pair as the same compound with + or - one hydrogen atom, since acids are characterized by having a hydrogen atom that is lost and becomes H+ (or H3O+) in an aqueous solution.

[VeronicaShepherd3B]

The formula of a conjugate base is the acid with one less hydrogen. The conjugate acid is the formula of the base plus one hydrogen ion.