1. What is Mass of Substance undergoing Electrolysis?

Definition: This calculator determines the mass of ions reacted or formed during electrolysis based on the equivalent weight of the substance and the charge passed through the electrolyte.

Purpose: It helps in electrochemical calculations to determine the amount of substance deposited or dissolved during electrolysis.

2. How Does the Calculator Work?

The calculator uses Faraday's law of electrolysis:

Where:

• \( m_{ion} \) — Mass of ions (kg)
• \( E \) — Equivalent weight of substance (kg)
• \( q \) — Charge passed (Coulombs)
• 96485 — Faraday's constant (C/mol)

Explanation: The mass of substance deposited or dissolved is proportional to the quantity of electricity passed and the equivalent weight of the substance.

3. Importance of Electrolysis Calculations

Details: Accurate mass calculations are crucial in electroplating, battery technology, and industrial electrochemical processes to control product quality and process efficiency.

4. Using the Calculator

Tips: Enter the equivalent weight of the substance in kg and the charge in Coulombs. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is equivalent weight?
A: Equivalent weight is the molecular weight divided by the number of electrons transferred per molecule in the reaction.

Q2: Why is Faraday's constant important?
A: Faraday's constant (96485 C/mol) relates the amount of charge to the amount of substance in electrolysis.

Q3: How do I find the equivalent weight?
A: Equivalent weight = Molar mass / n, where n is the number of electrons transferred in the reaction.

Q4: What units should I use?
A: Use kilograms for mass and Coulombs for charge. The calculator will give results in kilograms.

Q5: Can this be used for any electrolytic reaction?
A: Yes, as long as you know the equivalent weight of the substance and the total charge passed.