Practice Hl: Nernst Equation (8.6) - Chapter 7: Redox Processes

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6 sample questions

Question 1.
What does E° represent in electrochemistry?
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Think of E° as the baseline potential.
Question 2.
What is the significance of the reaction quotient (Q)?
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Remember it’s a snapshot of the reaction’s current state.
3Question 3.
What does the Nernst equation help calculate?
- Standard Cell Potential
- Cell Potential under Non-standard Conditions
- Neither
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Think about its application under varying conditions.
4Question 4.
True or False: Q represents the ratio of concentrations only at equilibrium.
- True
- False
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Consider how Q varies during the course of a reaction.
Question 5.
Given E° = +0.52 V, n = 3, and Q = 0.005 at 298 K, calculate the cell potential using the Nernst equation.
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Break it down into smaller steps applying the Nernst equation.
Question 6.
Derive the equilibrium constant from the Nernst equation for a half-cell with E° = -0.76 V and n = 2.
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Use the relationship between E and K once E=0.

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