What is the equivalence point in an acid-base titration? I'm supposed to do a virtual lab online and it tells you to find the equivalence point, but I don't know if that means when the pH is 7 or when the indicator changes colors.
1 answer
The equivalence point of a titration occurs when the moles of one component you started with equals the moles of the titrant. This point may or may not be at pH=7.0. The END POINT occurs when the indicator changes color, where ever that may be. We try to match the end point and the equivalence point, obviously. The difference in the two is the titration error.