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Definition: This calculator determines the concentration of electrolytes in the cathodic half-cell of a concentration cell without transference.
Purpose: It helps electrochemists and researchers analyze concentration cells and predict electrolyte distributions.
The calculator uses the Nernst equation for concentration cells:
Where:
Explanation: The formula relates the concentration difference between half-cells to the measured cell potential.
Details: Accurate concentration determination is crucial for understanding cell potentials, designing electrochemical systems, and corrosion studies.
Tips: Enter the anodic concentration, measured cell EMF, and temperature (default 298K). All values must be positive.
Q1: What is a concentration cell without transference?
A: It's an electrochemical cell with identical electrodes but different electrolyte concentrations, without a salt bridge.
Q2: Why does temperature affect the result?
A: The Nernst equation includes temperature as it affects ion mobility and reaction kinetics.
Q3: What units should I use?
A: Use mol/m³ for concentrations, volts for EMF, and kelvin for temperature.
Q4: Can I use molarity (mol/L) instead?
A: Yes, but be consistent (convert 1 M = 1000 mol/m³).
Q5: What does the factor of 2 represent?
A: It accounts for the two electrons typically involved in the redox reactions.