Discuss the criteria for a spontaneity of a reaction based on the standard Gibbs free energy (ΔGo and the standard cell potential (Eocell). The “tarnish” on silver is silver sulfide, Ag2S. The tarnish can be removed by placing silverware in an aluminum pan containing an inert electrolyte solution, such as NaCl. The standard reduction potential for the half-cell reaction for tarnish is. Ag2S(s) + 2e --> 2Ag(s) + S2-(aq) Eocell = -0.71V 1.) What is the other half of the cell created by placing the tarnished silver in the aluminum pan? Write the overall reaction occurring that removes the tarnish. Calculate the standard cell potential for the overall reaction from (a). Can we tell electricity has passed when the tarnished silver item is in the aluminum pan? What is happening to the tarnish? Where is it going?
Discuss the criteria for a spontaneity of a reaction based on the standard Gibbs free energy (ΔGo and the standard cell potential (Eocell). The “tarnish” on silver is silver sulfide, Ag2S. The tarnish can be removed by placing silverware in an aluminum pan containing an inert electrolyte solution, such as NaCl. The standard reduction potential for the half-cell reaction for tarnish is. Ag2S(s) + 2e --> 2Ag(s) + S2-(aq) Eocell = -0.71V 1.) What is the other half of the cell created by placing the tarnished silver in the aluminum pan? Write the overall reaction occurring that removes the tarnish. Calculate the standard cell potential for the overall reaction from (a). Can we tell electricity has passed when the tarnished silver item is in the aluminum pan? What is happening to the tarnish? Where is it going?
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 94GQ: A voltaic cell is constructed in which one half-cell consists of a silver wire in an aqueous...
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- Discuss the criteria for a spontaneity of a reaction based on the standard Gibbs free energy (ΔGo and the standard cell potential (Eocell). The “tarnish” on silver is silver sulfide, Ag2S. The tarnish can be removed by placing silverware in an aluminum pan containing an inert electrolyte solution, such as NaCl. The standard reduction potential for the half-cell reaction for tarnish is.
Ag2S(s) + 2e --> 2Ag(s) + S2-(aq) Eocell = -0.71V
1.) What is the other half of the cell created by placing the tarnished silver in the aluminum pan? Write the overall reaction occurring that removes the tarnish. Calculate the standard cell potential for the overall reaction from (a). Can we tell electricity has passed when the tarnished silver item is in the aluminum pan? What is happening to the tarnish? Where is it going?
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