Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the first law of Faraday?
💡 Hint: Think about how mass and electricity are related.
Question 2
Easy
What is the formula for calculating charge (Q)?
💡 Hint: Remember, charge comes from current times time.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What law states that mass produced is proportional to charge passed?
- Faraday's First Law
- Faraday's Second Law
- Kirchhoff's Law
💡 Hint: Think about the relationship between mass and electricity.
Question 2
True or False: The second law of Faraday states that all substances produce the same mass under the same current.
- True
- False
💡 Hint: Consider the different identities of substances.
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Challenge Problems
Push your limits with challenges.
Question 1
If a solution of silver nitrate (AgNO₃) undergoes electrolysis with a current of 4 A for 1500 seconds, how much silver (Ag) is produced? Use the half-equation Ag⁺ + e⁻ → Ag. Include all steps.
💡 Hint: Don't forget to convert current time to charge to get started.
Question 2
Consider an electrolytic cell converting water into hydrogen and oxygen using an external power source. If 1000 C of charge has been passed, how many moles of hydrogen gas are produced? Use the reactions: 2H₂O → 2H₂ + O₂ for reduction (for H₂) and 2H₂O → O₂ + 4H⁺ + 4e⁻ for oxidation (for O₂).
💡 Hint: Relate the moles of electrons to the balanced half-reaction for hydrogen production.
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