Calculates electrode potential from the Nernst equation and plots E vs log[ion] to determine standard potential and transfer coefficient. Slope of E vs log[ion] = 59.2/n mV/decade at 25 °C — ion-selective electrode calibration uses this relationship.
Inputs
E0 V
Reference formula or conversion factor shown for context.
N Electrons
Count of items or occurrences.
Q Reaction
Reference formula or conversion factor shown for context.
T K
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
cell potential E (V)
Sample size or count used in the calculation.
Gibbs free energy ΔG (kJ/mol)
Sample size or count used in the calculation.
equilibrium constant K
Sample size or count used in the calculation.
E = E° − (RT/nF)·ln(Q)
Sample size or count used in the calculation.
electrode examples (E° vs SHE)
Reference formula or conversion factor shown for context.
Q effect
Reference formula or conversion factor shown for context.