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âš¡ How to read an electrochemical cell diagram

Trace oxidation, reduction, electron flow, and salt-bridge ions without reversing the cell.

10
lessons
~10 min
to learn
🔬 Science
subject
Adults
level
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What you’ll learn

  1. Cell parts
  2. Anode
  3. Cathode
  4. Electron path
  5. Salt bridge
  6. Notation
  7. Ion movement
  8. Overall reaction
  9. Potential
  10. Audit

Questions this course answers

Where does oxidation occur?

The anode is defined as the electrode where oxidation occurs.

What carries electrons between half-cells?

Electrons move through the metallic external circuit.

What is the salt bridge's main role?

Ion migration prevents charge buildup in the half-cells.

What does the double line in cell notation represent?

The double line conventionally marks the salt bridge or liquid junction.

How is standard cell potential calculated?

Both tabulated values are written as reduction potentials, so subtract the anode value from the cathode value.

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