I understand that strong/weak acid has weak/strong conjugate base.
I'm just wondering why is that so?
My teacher explained to me through following argument.
If HCOOH is a strong acid, then HCOOH ---> HCOO- + H+
HCOOH will dissociate completely.
and if HCOO- is a strong base, then it will react with the H+ ions to form back HCOOH.
This apparently contradict each other, thus strong acid must have a weak conjugate base or vice versa.
I've no problem in following the arguments, and is just wondering any molecular explanations?
Thanks,
Kelvin