MAIN IDEAS for beginning Electrochemistry

MAIN IDEAS for beginning Electrochemistry - oxidation...

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MAIN IDEAS: 1. A Voltaic Cell uses a spontaneous oxidation-reduction reaction to produce electricity. 2. You can predict which reagent is the reducing agent and which is the oxidizing agent in a spontaneous reaction by using standard reduction potentials (See Appendix 6 and Figure 18.4 in your text). We’ll learn how to use those values after the break. 3. Two half-reactions with appropriate connections between electrodes and
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solutions is an electrochemical cell. See Figure 18.2. 4. The anode is the electrode at which
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Unformatted text preview: oxidation occurs, and the cathode is the electrode at which reduction occurs. The overall redox reaction that occurs is called the cell reaction. 5. The voltmeter measures the potential difference between the electrodes. This is the driving force that propels electrons from the anode to the cathode and is also called the cell potential or cell voltage (E cell ). NOTE: 1 V = 1 J/C This means that 1 volt is 1 Joule of energy per unit of charge (1C) that flows....
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MAIN IDEAS for beginning Electrochemistry - oxidation...

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