Question

What are primary and secondary reference electrodes? Give one example of each.

Answer 1

Answer:

One such electrode, the normal hydrogen electrode, has been chosen as a reference standard, relative to which potentials o... An electrode with an invariant potential. ... Such electrodes are known as secondary reference electrodes; the most common are the carnival silver–silver chloride electrodes.

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Answer 2

Answer:

A reference electrode is the electrode potential of any other electrode that may be measured. In other words, a reference electrode is an electrode whose half-cell potential is known, constant, and entirely insensitive to the solution's composition.

Explanation:

Depending on the nature of the other electrodes, the reference electrode can operate as both anode and cathode.

There are two types of reference electrodes are available:

• Electrode for primary reference: A primary reference electrode is the standard hydrogen electrode.
• Secondary reference electrode: A secondary reference electrode is one whose potential is calculated by connecting to the standard hydrogen electrode. For instance: Calomel is a type of electrode.

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