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כיצד לחשב את Faradays Electrolysis

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Faraday's laws of electrolysis: mass deposited = (M × I × t) / (n × F), where M is molar mass, I current, t time, n electrons.

מדריך שלב אחר שלב

  1. 1Input current, time, substance, electrons transferred
  2. 2Calculate moles and mass of product
  3. 3Determine Faraday efficiency

Worked Examples

קלט
Electroplate Cu: 1 A × 3600 s = 1.19 g Cu deposited (96,485 C/mol, 2 e⁻)
תוצאה
Efficiency typically 85-95%

Common Mistakes to Avoid

  • Using wrong number of electrons per atom
  • Not accounting for overpotential

Frequently Asked Questions

Why is current efficiency < 100%?

Side reactions (water splitting, hydrogen evolution) compete with desired reaction.

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