Electricity and Chemistry

30 lessons, pages 1441–1470.

  1. Electric Current and Chemical Change — Connecting charge movement with redox processes
  2. Electrolytes and Nonelectrolytes — Mobile ions as charge carriers in liquids
  3. Conductivity of Aqueous Solutions — Ion concentration and mobility in a simple circuit
  4. Strong and Weak Electrolytes — Extent of ion formation versus solution concentration
  5. Molten and Solid Ionic Compounds — Why mobile ions matter for conduction
  6. Building an Electrolytic Cell — Power source, electrodes and electrolyte
  7. Cathode and Anode in Electrolysis — Reduction and oxidation at named electrodes
  8. Electron Flow and Ion Migration — External-circuit electrons versus liquid-phase ions
  9. Half-Reactions in an Electrolytic Cell — Writing balanced electron-transfer equations
  10. Electrolysis of Molten Sodium Chloride — Sodium and chlorine from mobile molten ions
  11. Molten Versus Aqueous Sodium Chloride — How water changes possible electrode products
  12. Electrolysis of Water — Hydrogen and oxygen from a supplied electrical current
  13. Aqueous Copper Sulfate with Inert Electrodes — Copper deposition and competing anode reactions
  14. Aqueous Copper Sulfate with Copper Electrodes — Copper transfer between dissolving and depositing electrodes
  15. Electrode Material Changes the Reaction — Active versus inert electrode behavior
  16. Product Selection in Aqueous Electrolysis — Competing water and solute electrode reactions
  17. Brine Electrolysis Overview — Chlorine, hydrogen and sodium hydroxide products
  18. Chlorine Formation from Brine — Anodic chloride oxidation under relevant conditions
  19. Hydrogen and Hydroxide in Brine — Cathodic water reduction and alkaline solution
  20. Keeping Brine Products Apart — Cell separation and unwanted product reactions
  21. Electroplating Fundamentals — Metal-ion reduction onto a conducting object
  22. Planning a Copper Electroplating Cell — Cathode object, copper source and electrolyte
  23. Charge, Current and Time — Using Q = It for an electrolysis run
  24. The Faraday Constant — Charge per mole of electrons
  25. Predicting Deposited Metal Amount — Electron-to-metal stoichiometry from passed charge
  26. Current Efficiency and Side Reactions — Why measured product can be less than an ideal prediction
  27. Galvanic Versus Electrolytic Cells — Spontaneous electrical output versus driven chemical change
  28. Rechargeable Cells and Reversed Reactions — Charging as an externally driven electrochemical process
  29. Electricity and Chemistry Problem Set — Choosing electrode, ion and charge calculations
  30. Electricity and Chemistry: Unit Review — Integrating electrolytes, electrolysis, brine and plating