ELECTROCHEMISTRY MAIN POINTS 1. Electrochemistry 1. Electrochemistry 2. Electrolysis and electroplating 2. Electrolysis and electroplating 3. Primary cells 3. Primary cells 4. Secondary cell 4. Secondary cell ELECTROCHEMISTRY • Electrical  Chemical: Effects of electric current on aqueous solutions (Electrolysis; Electroplating) • Chemical  Electrical: Cells CHEMICAL ENERGY ELECTRICAL ENERGY  NaCl electrolyte Electrolysis FARADAY’S LAWS • The mass of the product of electrolysis is directly proportional to the amount of electricity that passes through the electrolyte. • The mass of the substances liberated or deposited is proportional to electrochemical equivalent ELECTROPLATING