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4 cards from this section. Quick, good the night before a test.
What does a positive standard electrode potential (E°) indicate?
Think about which substance is likely to gain electrons.
What is the standard electrode potential of the SHE?
This is our reference point for other electrodes.
What is the significance of a positive standard electrode potential (E°)?
Think about the role of oxidizing agents in redox reactions.
True or False: E°_cell must always be positive for a reaction to occur.
Consider what happens in electrolytic cells.
Consider two half-reactions: A²⁺ + 2e⁻ ⇌ A(s) E° = +0.76 V and B²⁺ + 2e⁻ ⇌ B(s) E° = -0.44 V. Which species would act as the reducing agent if combined in a galvanic cell?
Compare E° values to determine the roles of oxidizing and reducing agents.
Calculate the cell potential and determine spontaneity of the reaction between Ag⁺ and Cu with E° values of +0.80 V and -0.34 V respectively.
Follow the formula for E°_cell using cathode and anode values.
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