1. Products from electrolysis
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2. Objectives
C3.25 Explain the formation of the products in the electrolysis, using inert electrodes, of some electrolytes, including: a copper chloride solution b sodium chloride solution c sodium sulfate solution d water acidified with sulfuric acid e molten lead bromide (demonstration).
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3. Objectives
C3.26 Predict the products of electrolysis of other binary, ionic compounds in the molten state. C3.30 Explain the formation of the products in the electrolysis of copper sulfate solution, using copper electrodes, and how this electrolysis can be used to purify copper.
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4. Learning outcomes
CC3.25 Recall the products formed from the electrolysis of a variety of common compounds and solutions (copper chloride solution, sodium chloride solution, sodium sulfate solution, acidified water, molten lead bromide). CC3.25 Explain the formation of the products in the electrolysis of a variety of common compounds and solution (copper chloride solution, sodium chloride solution, sodium sulfate solution, acidified water, molten lead bromide).
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5. Learning outcomes
CC3.26 Predict the products formed from the electrolysis of a molten, binary, ionic compound. CC3.30 Explain how the electrolysis of copper sulfate solution using copper electrodes can be used to purify copper.
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6. Progression questions
How do you predict the products formed in the electrolysis of molten zinc chloride?
How do you explain the products formed in the electrolysis of sodium chloride solution?
How is copper purified using electrolysis?
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