Current Formula:
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Definition: This calculator determines the electric current flowing during electrolysis based on the mass of ions reacted, their equivalent weight, and the time duration.
Purpose: It helps chemists and electrochemists calculate the current required or produced in electrochemical reactions.
The calculator uses Faraday's law of electrolysis:
Where:
Explanation: The formula relates the quantity of substance transformed at an electrode to the quantity of electricity used.
Details: Accurate current calculation is essential for controlling electrochemical processes, determining reaction rates, and predicting product yields.
Tips: Enter the mass of ions in kg, equivalent weight in kg, and total time in seconds. All values must be > 0.
Q1: What is Faraday's constant?
A: Faraday's constant (96485 C/mol) represents the electric charge carried by one mole of electrons.
Q2: How do I determine equivalent weight?
A: Equivalent weight is the molecular weight divided by the number of electrons transferred per molecule in the reaction.
Q3: Why is time important in this calculation?
A: Current is the rate of charge flow, so longer times with the same mass reaction result in lower current values.
Q4: Can this be used for any electrochemical reaction?
A: Yes, as long as you know the mass change, equivalent weight, and time duration.
Q5: What units should I use?
A: Use kilograms for mass and equivalent weight, and seconds for time to get current in amperes.