Determination of the Faraday constant using stand material

In electrolysis, the electrical conduction processes are linked to a material deposition. The quantity of material deposited is proportional to the transported charge Q which flowed through the electrolyte. In this respect, the process is an application of Faraday's law.

z = valency number of ions of the substance

F = Faraday constant

Experiment C4.4.5.2 determines the Faraday constant F. For this purpose, a Hofmann voltameter is used to produce a certain quantity of hydrogen. The number of moles n of hydrogen atoms deposited can be calculated from the volume V using the ideal gas equation. At the same time, the amount of electrical charge Q required for this can be determined from the electrical work W.

The experiment can be conducted using CPS or standard stand material.