laczlacylaci

2+ Year Member
Jun 20, 2016
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Pre-Medical
A weak acid equivalence point pH>a strong acid equivalence point pH, correct?
because the weak acid will have a strong conjugate base, producing more OH-ions than a weaker conjugate base (from the strong acid)

A weak base equivalence point pH<a strong base equivalence point
 

theonlytycrane

5+ Year Member
Mar 23, 2014
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I think about it in terms of titrations in reference to a strong acid / strong base titration with an equivalence (neutralization point) at pH = 7.

For a weak acid, we would titrate with a strong base (NaOH). The base dominates the weak acid so the pH is higher (more basic).

For a weak base, we would use a strong acid (HCl). The acid dominates the weak base so the pH is lower (more acidic).