Concentration of Cathodic Electrolyte of Dilute Concentration Cell without Transference Calculator

Formula Used:

\[ c_2 = c_1 \times \exp\left(\frac{E_{\text{cell}} \times F}{2 \times R \times T}\right) \]

Cathodic Concentration (c₂):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Cathodic Electrolyte Concentration?

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.

2. How Does the Calculator Work?

The calculator uses the Nernst equation for concentration cells:

\[ c_2 = c_1 \times \exp\left(\frac{E_{\text{cell}} \times F}{2 \times R \times T}\right) \]

Where:

\( c_2 \) — Cathodic concentration (mol/m³)
\( c_1 \) — Anodic concentration (mol/m³)
\( E_{\text{cell}} \) — EMF of the cell (V)
\( F \) — Faraday constant (96485.33212 C/mol)
\( R \) — Gas constant (8.314 J/(mol·K))
\( T \) — Temperature (K)

Explanation: The formula relates the concentration difference between half-cells to the measured cell potential.

3. Importance of This Calculation

Details: Accurate concentration determination is crucial for understanding cell potentials, designing electrochemical systems, and corrosion studies.

4. Using the Calculator

Tips: Enter the anodic concentration, measured cell EMF, and temperature (default 298K). All values must be positive.

5. Frequently Asked Questions (FAQ)

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.