# How do you calculate the endpoint of a titration?

Jul 5, 2016

Well, you need a balanced chemical equation for starters.

#### Explanation:

And given the balanced chemical equation, you need some means to signal the end point of a titration, when a stoichiometric equivalence of titrant has been added to the analyte.

For simple acid base titrations:

${H}_{3} {O}^{+} + H {O}^{-} \rightarrow {H}_{2} O \left(l\right)$

an acid base indicator, which has distinct colours in acidic/base is used to indicate the end of the reaction.