1. What is Equivalent Weight given Electrochemical Equivalent?

Definition: This calculator determines the equivalent weight (gram equivalent) of an element based on its electrochemical equivalent value.

Purpose: It helps chemists and electrochemists understand the mass of an element that combines with or displaces 1 mole of electrons in electrochemical reactions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W_{eq} \) — Equivalent weight (kilograms)
• \( Z \) — Electrochemical equivalent of the element (kg/C)
• \( 96485 \) — Faraday's constant (C/mol)

Explanation: The electrochemical equivalent is multiplied by Faraday's constant to determine the mass of the element that would react with one mole of electrons.

3. Importance of Equivalent Weight Calculation

Details: Equivalent weight is crucial for stoichiometric calculations in electrochemistry, particularly in electrolysis and battery chemistry applications.

4. Using the Calculator

Tips: Enter the electrochemical equivalent of the element in kg/C. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is electrochemical equivalent?
A: It's the mass of an element (in kg) transported by 1 coulomb of electric charge during electrolysis.

Q2: Why is Faraday's constant used?
A: Faraday's constant (96485 C/mol) represents the charge of one mole of electrons, connecting charge to molar quantities.

Q3: How do I find the electrochemical equivalent?
A: It can be determined experimentally or calculated as molar mass divided by (n × Faraday's constant), where n is the number of electrons transferred.

Q4: What units should I use?
A: The calculator uses kg for mass and C for charge. For gram equivalents, divide the result by 1000.

Q5: Does this work for compounds?
A: Yes, but you need to know the total charge transfer involved in the compound's reaction.