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Define the electrical current efficiency calculated for electrochemical synthesis of hypochlorite in a manner that I can calculate it


Electrical current efficiency (ECE) is a measure of the efficiency of the electrochemical synthesis of hypochlorite, which is the process of using electrical energy to convert chloride ions (Cl-) and water (H2O) into hypochlorite ions (OCl-) and hydrogen gas (H2). It is calculated as the ratio of the amount of hypochlorite ion produced to the total theoretical amount that could be produced, expressed as a percentage. To calculate ECE, use the following formula: ECE = (Amount of hypochlorite ion produced / Theoretical amount of hypochlorite ion that could be produced) * 100% The theoretical amount of hypochlorite ion that could be produced is determined by Faraday's law, which states that the amount of a substance produced during an electrochemical reaction is directly proportional to the amount of electrical charge (in coulombs) passed through the system: Theoretical amount of OCl- ion produced = (Total electrical charge passed / Faraday constant) * Number of electrons transferred in the reaction The total electrical charge passed can be calculated by multiplying the current (in amperes) by the time (in seconds) that the reaction was run for. The Faraday constant is a conversion factor representing the charge on one mole of electrons and has a value of 96,485 coulombs per mole. The number of electrons transferred in the reaction depends on the stoichiometry of the reaction. For the electrochemical synthesis of hypochlorite, the reaction is: 2Cl- + 2H2O → OCl- + 2H+ + H2 This reaction involves the transfer of two electrons from each chloride ion (Cl-) to form one hypochlorite ion (OCl-). Therefore, the number of electrons transferred is 2. To calculate the amount of hypochlorite ion produced, you will need to measure the concentration of hypochlorite ion in the solution using a suitable method such as titration or colorimetry. This value can then be multiplied by the volume of the solution to determine the total amount of hypochlorite ion produced. Once you have all the necessary values, you can plug them into the formula for ECE and calculate the efficiency of the electrochemical synthesis of hypochlorite. Note: ECE may also be referred to as Faradaic efficiency or current efficiency, but they all represent the same concept.