Cell Potential Formula:
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Definition: Cell Potential in Potentiometry is the amount of work energy needed to move a unit of electric charge from a reference point to a specific point in an electric field.
Purpose: It helps in determining the electrochemical potential difference between two electrodes in a potentiometric cell.
The calculator uses the formula:
Where:
Explanation: The cell potential is calculated by multiplying the resistance by the current and then adding the applied potential.
Details: Accurate measurement of cell potential is crucial in electrochemical analysis, pH measurements, and various industrial processes.
Tips: Enter the resistance in ohms, current in amperes, and applied potential in volts. The calculator will compute the cell potential.
Q1: What is potentiometry?
A: Potentiometry is an electrochemical method that measures the potential of an electrochemical cell under static conditions.
Q2: What are typical values for resistance in potentiometry?
A: Resistance values can vary widely depending on the system, but typically range from a few ohms to several kiloohms.
Q3: How does current affect the cell potential?
A: Higher current flowing through a given resistance will result in a greater potential difference according to Ohm's Law (V = IR).
Q4: What is the significance of applied potential?
A: The applied potential provides the driving force for the electrochemical reaction and contributes to the overall cell potential.
Q5: Can this calculator be used for other electrochemical calculations?
A: This specific calculator is designed for potentiometric measurements. Other electrochemical systems may require different calculations.