Chemistry·Electrochemistry · NSSCO 5.1
Electrolysis — electrodes, cells & products
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Electricity can tear a compound apart. Learn the language of electrolysis — electrode, electrolyte, anode, cathode — draw the cell, write the half-equations, and predict the products for molten lead bromide, dilute sulfuric acid, and concentrated salt solutions.
What you'll learn in this lesson
By the end you should be able to (NSSCO Chemistry 5.1):
- Describe the terms electrode, electrolyte, anode and cathode in electrolysis
- Draw diagrams of electrolytic cells
- Describe the reactions at the electrodes using half equations (oxidation and reduction)
- State that metals or hydrogen form at the cathode, and non-metals (other than hydrogen) at the anode
- Describe the electrode products (inert electrodes) for molten lead(II) bromide, dilute sulfuric acid, concentrated hydrochloric acid, concentrated aqueous sodium chloride
- Predict the products of the electrolysis of a molten binary compound
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Miss Rachel and Mike talk through the whole topic — with the figure and working drawn live.
Hands-on lab
Electrolysis — interactive 3D lab