Podcast
Questions and Answers
What does a platinum electrode provide in a cell?
What does a platinum electrode provide in a cell?
- An insulating barrier
- An environment for chemical reactions
- A source of electrical resistance
- A conducting surface for electron transfer (correct)
In the context of cell diagrams, what does a comma typically signify?
In the context of cell diagrams, what does a comma typically signify?
- Separation between oxidized and reduced species (correct)
- Transition between different cell components
- Presence of an insulating layer
- Boundary between different physical states
Why is a platinum electrode used if a system does not include a metal that can act as an electrode?
Why is a platinum electrode used if a system does not include a metal that can act as an electrode?
- Because platinum provides resistance to electron transfer
- Because platinum promotes chemical reactions
- Because platinum enhances insulation in the cell
- Because platinum is unreactive and can conduct electricity (correct)
What should be used to represent different physical states in a half equation within a cell diagram?
What should be used to represent different physical states in a half equation within a cell diagram?
What does the double line in a cell diagram represent?
What does the double line in a cell diagram represent?
Why is it not possible to measure the absolute potential of a half electrode on its own?
Why is it not possible to measure the absolute potential of a half electrode on its own?
What role does the salt bridge play in an electrochemical cell?
What role does the salt bridge play in an electrochemical cell?
Why does a voltage form in an electrochemical cell with zinc and copper half-cells?
Why does a voltage form in an electrochemical cell with zinc and copper half-cells?
What is the function of a high resistance voltmeter in an electrochemical cell?
What is the function of a high resistance voltmeter in an electrochemical cell?
Which electrode in an electrochemical cell is typically considered as the negative terminal?
Which electrode in an electrochemical cell is typically considered as the negative terminal?
Why are simple half cells composed of a metal and a solution of a compound containing that metal?
Why are simple half cells composed of a metal and a solution of a compound containing that metal?
What is the purpose of having distinct half-cells in an electrochemical setup?
What is the purpose of having distinct half-cells in an electrochemical setup?
Why is a wire not used in a salt bridge for an electrochemical cell?
Why is a wire not used in a salt bridge for an electrochemical cell?
What happens if the voltmeter is removed and replaced with a bulb in an electrochemical cell circuit?
What happens if the voltmeter is removed and replaced with a bulb in an electrochemical cell circuit?
In an electrochemical cell, what happens as the reactants are used up?
In an electrochemical cell, what happens as the reactants are used up?
What does a cell diagram for an electrochemical cell represent?
What does a cell diagram for an electrochemical cell represent?
Which electrode in an electrochemical cell always undergoes reduction?
Which electrode in an electrochemical cell always undergoes reduction?
Why is potassium chloride not suitable for copper systems in a salt bridge?
Why is potassium chloride not suitable for copper systems in a salt bridge?
