pH curves (titration curves)

pH curves (titration curves)





This page describes how pH changes during various acid-base titrations.







The equivalence point of a titration



Sorting out some confusing terms



When you carry out a simple acid-base titration, you use an indicator
to tell you when you have the acid and alkali mixed in exactly the
right proportions to "neutralise" each other. When the indicator
changes colour, this is often described as the end point of the titration.



In an ideal world, the colour change would happen when you mix the
two solutions together in exactly equation proportions. That particular
mixture is known as the equivalence point.