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Order the steps: find a standard cell potential

Exercise and reference answers

Steps
  1. Identify which electrode is the cathode and which the anode
  2. Look up the standard potential of each, against the hydrogen electrode
  3. Subtract the anode value from the cathode value
  4. The result is the standard cell potential
  5. A positive value indicates a spontaneous cell reaction

Explanation

Identify the half-cells, look up their standard potentials then subtract in the right order. Source: syllabus Chemistry Part I, Ch 2 Electrochemistry.
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