Practice Electrolysis (3.9.1) - Chapter 3: Electrochemistry

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6 sample questions

Question 1.
What is electrolysis?
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Think about the role of electricity in chemical processes.
Question 2.
State Faraday’s First Law of Electrolysis.
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Recall how mass and charge are related.
3Question 3.
What does electrolysis involve?
- A. The use of heat to melt metals
- B. The use of electricity to cause a chemical change
- C. The physical mixing of substances
- D. The cooling of gases
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Think about the role of energy in chemical processes.
4Question 4.
True or False: Faraday’s First Law states that mass and charge are related.
- True
- False
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Consider how mass changes during electrolysis.
Question 5.
Calculate the mass of chlorine gas produced if 4.65 Faraday is passed through an electrolytic solution of sodium chloride solution, given that the equivalent weight of chlorine is 35.5 g.
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Remember to use the formula involving Faraday's constant and equivalent weight.
Question 6.
Explain how electrolysis can be applied in the wastewater treatment process.
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Think about the separation of harmful substances.

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