This Nernst equation calculator estimates the reduction potential (E) for a cell by considering the standard half-cell reduction potential (E^{∘}) at room temperature, no. of moles of electrons transferred in the cell (z), chemical activity for the reductant species (a_{Red}) and the one for the oxidant species (a_{Ox}).
How does this Nernst equation calculator work?
The algorithm of this Nernst equation calculator takes account of the following variables that should be provided:
■ Standard Half-Cell Reduction Potential (E^{∘}) measured in Volt. Please note that the standard half-cell reduction potential is considered by default to be for a cell at room temperature of 25°C.
However if you operate with temperatures expressed in other measurement units such as Kelvin or Fahrenheit you can discover the equivalent value of 25°C by using this temperature converter or this conversion calculator, or simply by using the following temperature conversion rules:
from Celsius | to Celsius | |
Fahrenheit | [°F] = [°C] x 9/5 + 32 | [°C] = ([°F] - 32) x 5/9 |
Kelvin | [K] = [°C] + 273.15 | [°C] = [K] - 273.15 |
■ Number of Moles of Electrons Transferred in the Cell (z) which should be greater than zero.
■ Chemical Activity for the Reductant Species(a_{Red}) which is mandatory to be greater than zero.
■ Chemical Activity for the Oxidant Species(a_{Red}) which should be a positive, non-zero value too.
Nernst equation = E^{0} – (0.05916/z) * log_{10}(a_{Ox}/a_{Red})
The reduction potential (E) that results by using this formulas is in volts.
13 Aug, 2015