1. What is Equivalent Weight?

Definition: Equivalent weight of a substance is the ratio of its molecular weight to the charge or valency of the substance.

Purpose: It helps in stoichiometric calculations for chemical reactions, particularly in electrochemistry.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Equivalent weight (kg)
• \( m_{ion} \) — Mass of ions (kg)
• \( C_{tran} \) — Electric charge transferred (Coulombs)
• 96485 — Faraday's constant (C/mol)

Explanation: The mass of ions is multiplied by Faraday's constant and divided by the total charge transferred during electrolysis.

3. Importance of Equivalent Weight Calculation

Details: Calculating equivalent weight is essential for determining reaction stoichiometry in electrochemical cells and for industrial electrolysis processes.

4. Using the Calculator

Tips: Enter the mass of ions in kilograms and the electric charge transferred in Coulombs. All values must be > 0.

5. Frequently Asked Questions (FAQ)

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 measure the mass of ions?
A: The mass of ions can be determined by weighing the substance before and after electrolysis.

Q3: What units should I use?
A: Use kilograms for mass and Coulombs for charge. The result will be in kilograms.

Q4: Can I use grams instead of kilograms?
A: Yes, but the result will then be in grams. Make sure all units are consistent.

Q5: How accurate is this calculation?
A: The calculation is theoretically accurate, but practical measurements may have experimental errors.