10) . Use the principles that you learned in Part ii tocalculate the standard reduction potentials for each half-cell,given that the E° for Cu2+ + 2e- ïƒ Cu (s) is 0.34 V.Note that E°for a half-reaction is not dependent on the coefficients, providedof course that the reaction is balanced, i.e., E° for Ag+ + e-ïƒ Ag(s) is the same as E° for Ag+ + 2e-ïƒ 2 Ag (s)
Refers to Procedures Part III Step9
Data Table 1: DataMeasurements |
| Cu red | Pb red | Sn red | Zn red | Al red | Mg red |
Cu black | 0 | -0.48 | -0.49 | -0.94 | -0.37 | -1.75 |
Pb black | 0.49 | 0 | -0.01 | -0.49 | -0.04 | -1.30 |
Sn black | 0.53 | 0.02 | 0 | -0.48 | -0.03 | -1.24 |
Zn black | 0.98 | 0.49 | 0.48 | 0 | 0.19 | -0.78 |
Al black | 0.58 | 0.03 | 0.04 | -0.07 | 0 | -0.94 |
Mg black | 1.76 | 1.27 | 1.26 | 0.77 | 0.78 | 0 |
* Pb results are mostunreliable
