Use the table of standard reduction potentials from your textbook to complete the following table. The zinc-copper Daniell cell is given as an example. Electrodes Zn Cu Zn Cu Zn Cu Zn Mg Conc. of Each Cation 1.0 M Zn²+ 0.5 M Cu²+ 1.0 M Zn²+ Half-Reactions A. Determine the E for the Standard Zn-Cu Galvanic Cell +2e-Zn -0.76 V Zn²+ (aq) 0.1 M Cu²+ 1.0 M Cu²+ Cu²+2e-Cu Cathode B. Determine the E' for the Cu-Zn Cell at Non-standard Concentrations 1.0 M Zn²+ Anode Zn²+ + 2e → Zn (aq) Cu²+2e-Cu (aq) Zn²+ (aq) 1 +2e-Zn Cathode or Anode? Cu²+ + 2e-Cu (aq) Anode - E₁ E E cell cell (table) (cale'd) (measured) +0.34 V 0.46V Cathode 0.34 v anode 0.76v Cathode 0.34 v C. Determine the E for Zn-Mg and Cu-Mg Galvanic Cells 24 1.0 M Zn²+ Zn(aq) + 2€ Zn (s) Cathode -0.76v - 24 1.0 M Mg²+Mga+2e Mg (s) anode -2.38 +1.10V +1.06 v 1.10 1.04 V V 101 0.98 v 10 v1.54 v
Use the table of standard reduction potentials from your textbook to complete the following table. The zinc-copper Daniell cell is given as an example. Electrodes Zn Cu Zn Cu Zn Cu Zn Mg Conc. of Each Cation 1.0 M Zn²+ 0.5 M Cu²+ 1.0 M Zn²+ Half-Reactions A. Determine the E for the Standard Zn-Cu Galvanic Cell +2e-Zn -0.76 V Zn²+ (aq) 0.1 M Cu²+ 1.0 M Cu²+ Cu²+2e-Cu Cathode B. Determine the E' for the Cu-Zn Cell at Non-standard Concentrations 1.0 M Zn²+ Anode Zn²+ + 2e → Zn (aq) Cu²+2e-Cu (aq) Zn²+ (aq) 1 +2e-Zn Cathode or Anode? Cu²+ + 2e-Cu (aq) Anode - E₁ E E cell cell (table) (cale'd) (measured) +0.34 V 0.46V Cathode 0.34 v anode 0.76v Cathode 0.34 v C. Determine the E for Zn-Mg and Cu-Mg Galvanic Cells 24 1.0 M Zn²+ Zn(aq) + 2€ Zn (s) Cathode -0.76v - 24 1.0 M Mg²+Mga+2e Mg (s) anode -2.38 +1.10V +1.06 v 1.10 1.04 V V 101 0.98 v 10 v1.54 v
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 100QAP: Consider the following standard reduction potentials:...
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