I am a bit confused on how faraday determined his constant. So I’ve been taught that he realized that if you sent a certain amount of charge (96485 C), then one mole (or some fraction of that based on the ionization) of a substance would be deposited. But how did he know what one mole of a substance was because Avogadro’s number was found by dividing the faraday by the charge of an electron. So it seems like a little bit of circular definition? Like if he used silver, how did he know what 1 mole of silver was because he couldn’t know what the molar mass of silver is if Avogadro’s number hadn’t been found then?