Editing Equivalence point (section)

{{Short description|Particular ratio of chemical reactants}}
{{one source|date=July 2013}}
The '''equivalence point''', or '''[[stoichiometry|stoichiometric]] point''', of a [[chemical reaction]] is the point at which chemically equivalent quantities of reactants have been mixed. For an acid-base reaction the equivalence point is where the moles of acid and the moles of base would neutralize each other according to the chemical reaction.  This does not necessarily imply a 1:1 molar ratio of acid:base, merely that the ratio is the same as in the chemical reaction. It can be found by means of an indicator, for example [[phenolphthalein]] or [[methyl orange]].

The '''endpoint''' (related to, but not the same as the equivalence point) refers to the point at which the indicator changes color in a colorimetric [[titration]].