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What is the standard electrode potential of the half-reaction: Cu²⁺ + 2e⁻ → Cu?

Practice Questions

Q1
What is the standard electrode potential of the half-reaction: Cu²⁺ + 2e⁻ → Cu?
  1. +0.34 V
  2. +0.76 V
  3. -0.34 V
  4. -0.76 V

Questions & Step-by-Step Solutions

What is the standard electrode potential of the half-reaction: Cu²⁺ + 2e⁻ → Cu?
  • Step 1: Understand that the half-reaction involves copper ions (Cu²⁺) gaining electrons (2e⁻) to become solid copper (Cu).
  • Step 2: Recognize that the standard electrode potential is a measure of how easily a species can be reduced (gain electrons).
  • Step 3: Look up the standard electrode potential value for the half-reaction Cu²⁺ + 2e⁻ → Cu in a reliable chemistry reference or database.
  • Step 4: Find that the standard electrode potential for this half-reaction is +0.76 V.
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