Weight of Second Ion by Faraday's Second law of Electrolysis Calculator

Faraday's Second Law Formula:

\[ W_2 = W_1 \times \left( \frac{E_2}{E_1} \right) \]

Mass of ions 1 (W₁):

Equivalent weight of substance 1 (E₁):

Equivalent Weight of Substance 2 (E₂):

Mass of ions 2 (W₂): kg

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1. What is Faraday's Second Law of Electrolysis?

Definition: Faraday's Second Law states that when the same quantity of electricity is passed through different electrolytes, the masses of ions deposited or liberated are proportional to their equivalent weights.

Purpose: This calculator helps determine the mass of a second ion produced or consumed in electrolysis based on the mass of a first ion and their equivalent weights.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W_2 = W_1 \times \left( \frac{E_2}{E_1} \right) \]

Where:

\( W_2 \) — Mass of second ion (kg)
\( W_1 \) — Mass of first ion (kg)
\( E_2 \) — Equivalent weight of substance 2 (kg)
\( E_1 \) — Equivalent weight of substance 1 (kg)

Explanation: The mass of the second ion is calculated by multiplying the mass of the first ion by the ratio of their equivalent weights.

3. Importance of Faraday's Second Law

Details: This law is fundamental in electrochemistry for determining quantities of substances produced or consumed in electrolytic processes, with applications in electroplating, battery technology, and industrial electrolysis.

4. Using the Calculator

Tips: Enter the mass of the first ion (W₁), equivalent weight of substance 1 (E₁), and equivalent weight of substance 2 (E₂). All values must be > 0. Default values are provided for common substances.

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 (valency).

Q2: Can I use grams instead of kilograms?
A: Yes, as long as all weights are in the same units, the calculator will work correctly.

Q3: What are typical equivalent weights?
A: For example, silver (Ag⁺) has 0.1079 kg, copper (Cu²⁺) has 0.0318 kg, and zinc (Zn²⁺) has 0.0327 kg.

Q4: Does this work for gases produced in electrolysis?
A: Yes, the law applies to both solid deposits and gases liberated during electrolysis.

Q5: How accurate is this calculation?
A: The calculation is theoretically exact, but practical results may vary slightly due to side reactions or inefficiencies.