CHM exp report 9 - CHM 151 Experiment Report Student’s...

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Unformatted text preview: CHM 151 Experiment Report Student’s name : Lai Shin Zie ID : I08001607 Partner’s name : Nicholas Chai ID : I08001107 Section : 5A Lecturer’s name : Dr. Palsan A/L Sannasi @ Sannach Due date : 18 July 2008 11 June 2008 Experiment 9 : Galvanic Cells and the Nernst Equation Aim : 1. To determine the reduction potentials of redox couples. 2. To determine the effect of concentration changes on cell potentials. 3. To determine the Nernst equation and an unknown concentration. Procedure : Please refer to the laboratory manual page 70-72. Results & Calculations : Table 9.1 Reduction potentials of several redox couples Galvanic Cell Measured E cell Anode Equation for Anode Reaction Cathode Equation for Cathode Reaction Cu-Zn 1.254 Cu Cu Cu 2+ +2e- Zn Zn 2+ +2e- Zn Cu-Mg 2.853 Cu Cu Cu 2+ +2e- Mg Mg 2+ +2e- Mg Cu-Fe 0.750 Cu Cu Cu 2+ +2e- Fe Fe 2+ +2e- Fe Zn-Mg 0.957 Zn Zn Zn 2+ +2e- Mg Mg 2+ +2e- Mg Fe-Mg 1.488 Fe Fe Fe 2+ +2e- Mg Mg 2+ +2e- Mg Zn-Fe 0.535 Fe Fe Fe 2+ +2e- Zn Zn 2+ +2e- Zn 1. Write the balanced net reaction for each of the galvanic cells....
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CHM exp report 9 - CHM 151 Experiment Report Student’s...

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