Zadania z chemii IB SL

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Energy can also be produced by a hydrogen-oxygen fuel cell with an acidic electrolyte. (i) Deduce the half-equations for the electrode reactions in this fuel cell. (ii) Hydrogen produces a line emission spectrum with several lines in the visible region.…

A direct formic acid fuel cell generates electricity by oxidizing formic acid, $\ce{HCOOH}$ , with oxygen at the two electrodes, shown below as separate half-equations. Anode: $\ce{HCOOH(aq) -> CO2(g) + 2H+(aq) + 2e-}$ Cathode:…