A potentiometer or a redox indicator is usually used to determine the endpoint of the titration, as when one of the constituents is the oxidizing agent potassium dichromate.
Aku bersumpah, ini seperti aku bekerja dengan anak kecil yang baru bisa jalan!WikiMatrix WikiMatrix
These are used for redox titrations; the potential of the working electrode will suddenly change as the endpoint is reached. pH meter: A potentiometer with an electrode whose potential depends on the amount of H+ ion present in the solution.
Most (cheaper) "log" potentiometers are not accurately logarithmic, but use two regions of different resistance (but constant resistivity) to approximate a logarithmic law.