The Faraday constant, denoted by the symbol F and sometimes stylized as F, is named after Michael Faraday. In chemistry and physics, this constant represents the magnitude of electric charge per mole of electrons. It has the currently accepted value
One common use of the Faraday constant is in electrolysis calculations. One can divide the amount of charge in coulombs by the Faraday constant in order to find the chemical amount (in moles) of the element that has been oxidized.
The value of F was first determined by weighing the amount of silver deposited in an electrochemical reaction in which a measured current was passed for a measured time, and using Faraday's law of electrolysis.
Since the 2019 redefinition of SI base units, which introduced exactly defined values for the elementary charge and the mole, the Faraday constant is exactly
Related to Faraday's constant is the "faraday", a unit of electrical charge. It is much less common than the coulomb, but sometimes used in electrochemistry. One faraday of charge is the magnitude of the charge of one mole of electrons, i.e. C.
Expressed in faradays, the Faraday constant F equals "1 faraday of charge per mole".
The Simpsons episode "Dark Knight Court" has Mr. Burns asking Comic Book Guy how much he wants for his entire comic book inventory. He says "the speed of light expressed as dollars" and Mr. Burns tells Smithers to "just give him Faraday's Constant". The check is written for $96,485.34.