# How to calculate reduction potential Nernst equation edit Main article: Nernst equation The E h displaystyle E_h and pH of a solution are related.
An example of that would be the formation of magnetite (Fe3O4) from HFeO 2 (aq 4 3 HFeO 2 H Fe3O4 2 H2O 2 e where.1819.0885 log(HFeO 23).0296.
How to Calculate Standard Cell Potential.
H ow do we know which metal will become oxidized and which metal ion reduced?It should be noted that we cannot measure the cell potential directly due to the following reasons: A half-cell whether oxidation or reduction half-cell cannot work of its owns and can work only when connected to the other half cell.The copper atoms have a behavior (tendency) to lose electrons to form Cu2 ions which go into the solution as a result of oxidation.With the passage of time, it has been changed.To solve the problem, a reference electrode is needed and must be assigned.Redox affects the solubility of nutrients, especially metal ions.Thus, imparting a positive charge.The standard hydrogen electrode is also known as a reversible electrode.The electrons present at the electrode will also have a tendency to attract the positive ions (Cu2 ions) present in the solution.EoCell Eocathode Eoanode.76 0 Eoanode, eoanode -0.76V, thus, the standard reduction potential of zinc (Zn2/Zn) is -0-76.Therefore, other more stable reference electrodes such as silver chloride and saturated calomel (SCE) are commonly used because of their more reliable performance.NOT multiply the silver reduction potential by this factor.Determination of Eo value of zinc.O ne of the half-reactions must be reversed to yield an oxidation.In case, the deflection is towards the hydrogen electrode, this means that the flow of electrons is from hydrogen electrode towards the metal electrode.The normal hydrogen electrode (NHE) is constructed in such a way having platinum electrode into a solution of 1 N strong acid. .Review: On a sheet of paper, derive the balanced net equation for this voltaic cell.How to find Atomic Radius?
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