HELP, Calculate Standard Reduction Potential?

Question

Using the following data

1. Cu^3+  + 2e^-  ----->  Cu^+   : E1 = 1.28 V

2. Cu^2+  + e^-  ----->  Cu^+   : E2 = 0.15 V

3. Cu^2+  + 2e^-  ----->  Cu (s)   : E3 = 0.34 V

4. Cu^+  + e^-  ----->  Cu (s)   : E4 = 0.52 V

calculate the standard reduction potential (V) for the reaction of Cu(III) to Cu(II).

? · Accepted Answer

1-2

Cu3+ + 2e- - ( Cu2+ + e-) -------> Cu+ - Cu+ ....E = E1-E2 = 1.28-0.15 = 1.13 V

Cu3+ + e- -----> Cu2+ ......E = 1.13 V

? · Answer

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HELP, Calculate Standard Reduction Potential?

2 Answers