[3] ~ Electrolytes Consider the following half-cells, where you are given their reduction potentials and molalities: Eºr red=+0.80 V & red=0.31 V * Ag(s) Agt (m1), NO3- (m1); * Pb(s) PbSO4(s), SO4²- (m2), K+ (2m2); where m₁ = 0.003 mol/kg and m2-0.009 mol/kg. (a) Make a scheme of a Galvanic battery that involves these half cells and show which are the anode and cathode. (Make a reasonable choice of salt bridge that reduces the liquid juncture potential AOLJ.) (b) Write the Nernst equation, using the Debye-Hückel limit law for the activity coefficients. (c) Calculate the electromotive force for the battery at 298K.

[3] ~ Electrolytes Consider the following half-cells, where you are given their reduction potentials and molalities: Eºr red=+0.80 V & red=0.31 V * Ag(s) Agt (m1), NO3- (m1); * Pb(s) PbSO4(s), SO4²- (m2), K+ (2m2); where m₁ = 0.003 mol/kg and m2-0.009 mol/kg. (a) Make a scheme of a Galvanic battery that involves these half cells and show which are the anode and cathode. (Make a reasonable choice of salt bridge that reduces the liquid juncture potential AOLJ.) (b) Write the Nernst equation, using the Debye-Hückel limit law for the activity coefficients. (c) Calculate the electromotive force for the battery at 298K.

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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(a) Define molar conductivity of a substance and describe how for weak and strong electrolytes, molar conductivity changes with concentration of solute. How is such change explained?(b) A voltaic cell is set up at 25 °C with the following half-cells:Ag+(0.001 M) | Ag and Cu2+(0.10 M) | Cu What would be the voltage of this cell?(E0cell = 0 .46 V)
Consider the following cell: | Zn (s) | Ca2* (aq) , SO3²- (aq) || Hg²+ (aq) , F' (aq) | Pt (s) | al Indiate the Oxidizing Agent bindicate the ReducingAge Gont e Wnte he narreattions that occurs ai the cathode d) Write the half reactions that occurs at the anode e) Write the overall net cell reaction f) Calculate the cell potential g) Indicate if electricity is produced or consumed by the cell h) Indicate if the cell is galvanic or electrolytic
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9) At 25°C, what is the potential and the cell reaction for the following cell: Ni | Ni2+ (aq, 0010 M) || Cl(aq, 0.20M) | Cl2 (g, 1 atm) | Pt? What is the Keg at 298K?
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