Questions from General Chemistry


Q: Traces of aniline, C6H5NH2, in drinking water can be determined

Traces of aniline, C6H5NH2, in drinking water can be determined by reaction with an excess of electrolytically generated Br2: The polarity of the working electrode is then reversed, and the excess Br...

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Q: Quinone can be reduced to hydroquinone with an excess of electrolytically generated

Quinone can be reduced to hydroquinone with an excess of electrolytically generated Sn(II): The polarity of the working electrode is then reversed, and the excess Sn(II) is oxidized with Br2 generate...

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Q: How do concentration polarization and kinetic polarization resemble one another? How

How do concentration polarization and kinetic polarization resemble one another? How do they differ?

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Q: Describe conditions that favor kinetic polarization in an electrochemical cell.

Describe conditions that favor kinetic polarization in an electrochemical cell.

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Q: What is a supporting electrolyte, and what is its role in

What is a supporting electrolyte, and what is its role in electrochemistry?

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Q: How do electro gravimetric and coulometric methods differ from potentiometric methods?

How do electro gravimetric and coulometric methods differ from potentiometric methods? Consider currents, voltages, and instrumentation in your answer.

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Q: What is meant by Nernstian behavior in an indicator electrode?

What is meant by Nernstian behavior in an indicator electrode?

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Q: What is the purpose of a depolarizer?

What is the purpose of a depolarizer?

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Q: Why is the working electrode normally isolated from the counter electrode in

Why is the working electrode normally isolated from the counter electrode in a controlled-potential coulometric analysis?

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Q: Why is an auxiliary reagent always required in a coulometric titration?

Why is an auxiliary reagent always required in a coulometric titration?

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