Primary Reference Electrode. A highly acid solution. Two commonly used reference electrodes are standard hydrogen electrode she and calomel electrode.
Using reference electrodes unknown potential of any other single electrode can be found out e g. In potentiometry see chap. Science chemistry electrochemistry reference electrodes the electrode whose potential is arbitrarily fixed or is exactly known at a given constant temperature is known as a reference electrode.
The actual potential of the half cell prepared in this way is 0 197 v vs she which arises because in addition to kcl agcl also contributes to the.
Using reference electrodes unknown potential of any other single electrode can be found out e g. Standard hydrogen electrode she e 0 000 v activity of h 1 molar normal hydrogen electrode nhe e 0 000 v concentration h 1 molar reversible hydrogen electrode rhe e 0 000 v 0 0591 ph. The actual potential of the half cell prepared in this way is 0 197 v vs she which arises because in addition to kcl agcl also contributes to the. The standard reference point for electrochemical potentials is the hydrogen electrode h h2.
