The Faraday’s Law Calculator calculates the mass of a substance deposited or liberated during electrolysis using the formula m = (I × t × M) / (n × F), where I is the current in amperes, t is the time in seconds, M is the molar mass, n is the number of electrons exchanged, and F is the Faraday constant (96485 C/mol). It demonstrates Faraday’s First Law of Electrolysis, which states that the mass of a substance deposited is directly proportional to the total charge passed through the electrolyte. This calculator is useful for chemistry and electrochemistry students to analyze electrolysis reactions, plating processes, and charge–mass relationships in electrochemical cells.