Equivalence point

[Contach]

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What is the equivalence point of a weak acid - weak base titration?

Thank you.

 

[211183]

I don't think there is any such thing. That would never be done in a real experiment.

 

[211183]

Sorry that wasn't very specific.
But the titration curve would just look like a hill with a negative slope I believe. But it would just be a hill--- the "point" of complete titration (equivalence pt) that you are usually looking for would not be very noticeable.

Since they are both weak they "blend" and are difficult to distinguish in the lab.

It is rarely done in lab experiments.

 

[Contach]

thanks for your responses.
a question in destroyer had a graph that had an approximate equivalence of 5.9 or something.
then it said: Which of the following substances could have been used in the titration:
a) weak base - weak acid
b) strong acid - strong base
c) weak base - strong acid
d) weak acid - strong base

I was like. ok. 5.9 acidic, so strong acid and weak base for sure. but then i was like. if they use a weak acid and a weak base, but the weak acid is stronger, then can't that also give an equiv of 5.9?

I guess the best answer is strong acid and weak base.. but just trying to understand..