4. Compare the sum of the Cu-Zn and the Zn-Mg cell potentials with the Cu-Mg cell potential.What can you conclude?5. What effect, if any, would varying the concentration of both the aqueous species have on thecell potentials? What about varying the size of the electrodes?144 EXPERIMENT 12PAK(4 NameEXPERIMENT 12ELECTROCHEMISTRY: GALVANIC CELLSElectrodesUse the table of standard reduction potentials from your textbook to complete the following table.The zinc-copper Daniell cell is given as an example.CuZnZnZnCuCuZnMgCuMgConc. ofEach Cation1.0 M Zn²+1.0 M Cu²+0.5 M Cu²+1.0 M Zn²+Date0.1 M Cu²+Zn²+ + 2e-Zn(ag)InstructorCu²+2e-CuB. Determine the E* for the Cu-Zn Cell at Non-standard ConcentrationsAnode0.46 V1.0 M Zn²+Cu²+ + 2e-CuHalf-ReactionsA. Determine the E for the Standard Zn-Cu Galvanic CellZn²+ + 2e-Zn-0.76 VZn²+ + 2e- → ZnCathode orAnode?+2eReport SheetAnodeEE(table) (calc'd)Cathode+0.34 VCathode 0.34 vanode 0.761.0 M Zn²+ Zn (aq) +2e-Zn (s)1.0 M Mg²+Mga+2e Mg (s)1.0 M Cu²+C+ZeCu(s)1.0 M Mg²+ MMg(s)"You must use the Nernst equation to calculate this Ecell voltage. (See Equation 8.)Cathode 0.34 vCu²+ + 2e → CuC. Determine the E for Zn-Mg and Cu-Mg Galvanic CellsCathode -0.76anode -2.38v+1.10 V 1.06 vCathode 0.34varode -2.38v1.10 1.04 vE(measured)1.10 0.98 v1.62 v?1.54 v2.72 1.98vELECTROCHEMISTRY: GALVANIC CELLS 1419PgUp63PgDnDelCBacksPad+Ent

For a set of given cell potentials, we have to answer the given questions:

4. Compare the sum of the Cu-Zn and the Zn-Mg cell potentials with the Cu-Mg cell potential. What can you conclude? 5. What effect, if any, would varying the concentration of both the aqueous species have on the cell potentials? What about varying the size of the electrodes?

4. Compare the sum of the Cu-Zn and the Zn-Mg cell potentials with the Cu-Mg cell potential. What can you conclude? 5. What effect, if any, would varying the concentration of both the aqueous species have on the cell potentials? What about varying the size of the electrodes?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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