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What is the standard electrode potential of the half-reaction Zn²⁺ + 2e⁻ → Zn?

Practice Questions

Q1
What is the standard electrode potential of the half-reaction Zn²⁺ + 2e⁻ → Zn?
  1. 0.76 V
  2. 0.34 V
  3. -0.76 V
  4. -0.34 V

Questions & Step-by-Step Solutions

What is the standard electrode potential of the half-reaction Zn²⁺ + 2e⁻ → Zn?
  • Step 1: Understand that the half-reaction Zn²⁺ + 2e⁻ → Zn shows the reduction of zinc ions (Zn²⁺) to solid zinc (Zn).
  • Step 2: Know that the standard electrode potential is a measure of how easily a species can be reduced. It is measured in volts (V).
  • Step 3: Look up the standard electrode potential for the half-reaction Zn²⁺ + 2e⁻ → Zn in a standard reference table.
  • Step 4: Find that the standard electrode potential for this half-reaction is -0.76 V.
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