What is the point called were the indicator just changes color in a neutralization reaction?

1 Answer
Apr 9, 2017

The equivalence point.


This may really depend on the type of indicator and acid/base system you are using. Some indicators go through a intermediate color changing from their initial state to their "end point" color.

Weak acid or base titrations are always harder to "see" in transition. Strong acid/base titrations usually show a clear change to "endpoint" shortly after the initial color "fluctuation" that may be seen at the equivalence point.

The equivalence point is the point where the concentrations of the #[H^+] and [OH^-]# are in equal concentrations. The endpoint is just a bit beyond that, where the indicator color changes completely, and the pH has shifted from acidic to basic, or vice-versa.