[repurplecirculation]

Those formulas are just the standard textbook formulas in chemistry (assuming no losses and a perfect world) based on molar masses of ideal water at 1ATM 25deg C. By no means does this imply 100% conversion efficiency in the real world (why I specified that most are lucky to approach even 50% in traditional electrolysis). Just like in fusion or fission (atomic level) reactions, molecular reactions can have apparent violations of CoE (in reality, basic chemistry equations do not include every nuance that may be present in a reaction - e.g. energy trapped/released from a sympathetic vibrating lattice, spin conversions, magnetic bonds, etc.).