Zn+_+Cu+Cell - ∆ G. ) Add the voltages algebraically....

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Zn 2+ + 2 e - Zn - 0.76 volts Cu 2+ + 2 e - Cu + 0.34 volts Reverse one, (doesn’t matter which) and change the sign. Add the two reactions together and if the electrons don’t cancel multiply through both sides so that they do. BUT: Don’t multiply the voltage. (Running it more times doesn’t change
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Unformatted text preview: ∆ G. ) Add the voltages algebraically. i.e. include the sign. Zn + Cu 2+ Zn 2+ + Cu + 1.10 volts A positive voltage means this cell reaction goes forward as written. A negative voltage means the reverse reaction is spontaneous....
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This note was uploaded on 01/16/2012 for the course ENVIRON 404 taught by Professor Rasmussen during the Fall '11 term at University of Michigan.

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Zn+_+Cu+Cell - ∆ G. ) Add the voltages algebraically....

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