1. What is Current Flowing given Mass of Substance Calculator?

Definition: This calculator determines the electric current required to deposit or dissolve a given mass of substance during electrolysis.

Purpose: It helps electrochemists and engineers calculate the current needed for electrochemical processes like electroplating or battery charging.

2. How Does the Calculator Work?

The calculator uses Faraday's law of electrolysis:

Where:

• \( i \) — Electric current (amperes)
• \( m_{ion} \) — Mass of ions reacted or formed (kilograms)
• \( Z \) — Electrochemical equivalent of element (kg/C)
• \( t \) — Total time of electrolysis (seconds)

Explanation: The mass of substance deposited is proportional to the quantity of electricity passed through the electrolyte.

3. Importance of Current Calculation

Details: Accurate current calculation ensures proper deposition rates in electroplating, correct battery charging, and efficient electrochemical processes.

4. Using the Calculator

Tips: Enter the mass of ions in kg, electrochemical equivalent (default 0.022 kg/C for many elements), and total time in seconds. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is electrochemical equivalent?
A: It's the mass of substance deposited or dissolved per coulomb of charge passed, specific to each chemical element.

Q2: How do I find the electrochemical equivalent?
A: It can be calculated from molar mass and valency, or found in electrochemical reference tables for common elements.

Q3: What units should I use?
A: Use kilograms for mass, kg/C for electrochemical equivalent, and seconds for time to get current in amperes.

Q4: Can this be used for any electrochemical process?
A: Yes, as long as you know the electrochemical equivalent of the substance involved in the reaction.

Q5: Does this account for current efficiency?
A: No, the calculation assumes 100% current efficiency. For real processes, divide the result by the efficiency factor.