CHM 2354 Lecture Notes - Lecture 15: Electrosynthesis, Voltammetry, Coulometry
25 May 2015
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Lecture 15 coulometry, voltammetry, and related methods. Remember potential is static no mvt of electrons or consumptions of ions. P is the pressure of the gas. Must use concentrations ^ stoichiometric coefficients from the rxn. So this is the cell at neutral. We must apply current lower than this to force. Be careful not to set potential to far from this then other things will be reduced. Set conditions so reduction happens asap to equation reaction error. Very accurate only measurement is the. Can get deposit reaction to go to any desired of completion by selecting the proper potential. Some degree of selectivity using the potential. Goes the because disallow weighing degree: separations separate one species from another in solution. This method is used to remove interferences particularily in electrochemical methods: preconcentration. Plating out metals from a large volume of solution (over 1 l) gives you sample of the metal.
