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2. Consider the electrochemical cell where one of the half cells is comprised of a Pt electrode in a solution containing NO(g) at a pressure of 0.278 atm and N20(g) at a pressure of 0.266 atm with OH" concentration of 6.00 M. The other half cell is comprised of a Pt electrode in a solution containing CIO3-(aq) at a concentration of 2.66 x 10-2 M and CI"(aq) at a concentration of 1.47 x 10-4 M with a OH- concentration of 4.21 x 10-2 M. The temperature of the cell is 281.5 K.

2. Consider the electrochemical cell where one of the half cells is comprised of a Pt electrode in a solution containing NO(g) at a pressure of 0.278 atm and N20(g) at a pressure of 0.266 atm with OH" concentration of 6.00 M. The other half cell is comprised of a Pt electrode in a solution containing CIO3-(aq) at a concentration of 2.66 x 10-2 M and CI"(aq) at a concentration of 1.47 x 10-4 M with a OH- concentration of 4.21 x 10-2 M. The temperature of the cell is 281.5 K.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 18E: From the information provided, use cell notation to describe the following systems: (a) In one...
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2. Consider the electrochemical cell where one of the half cells is comprised of a Pt electrode in a solution containing NO(g) at a pressure of 0.278 atm and N20(g) at a pressure of 0.266 atm with a OH- concentration of 6.00 M. The other half cell is comprised of a Pt electrode in a solution containing CIO3(aq) at a concentration of 2.66 × 10-2 M and CI(aq) at a concentration of 1.47 x 10-4 M with a OH concentration of 4.21 x 10-2 M. The temperature of the cell is 281.5 K. (a) What is Ecell (in V)? Report your answer to three decimal places in standard notation (i.e., 0.123 V). (b) Which one of the following chemical reactions describes the process occurring in the electrochemical cell? 12NO(g) + 3CI(aq) → 9N20(g) + 2CIO3¬(aq) 3N20(g) + CIO3 (aq) → 6NO(g) + CI¯(aq) 6NO(g) + CI¯(aq) → 3N20(g) + ClO3¯(aq) 9N20(g) + 2CIO3 (aq) → 12NO(g) + 3CI¯(aq) (c) What is AG (in kJ/mol)? Report your answer to three significant figures in scientific notation (i.e., 1.23e2 kJ/mol).
Transcribed Image Text:2. Consider the electrochemical cell where one of the half cells is comprised of a Pt electrode in a solution containing NO(g) at a pressure of 0.278 atm and N20(g) at a pressure of 0.266 atm with a OH- concentration of 6.00 M. The other half cell is comprised of a Pt electrode in a solution containing CIO3(aq) at a concentration of 2.66 × 10-2 M and CI(aq) at a concentration of 1.47 x 10-4 M with a OH concentration of 4.21 x 10-2 M. The temperature of the cell is 281.5 K. (a) What is Ecell (in V)? Report your answer to three decimal places in standard notation (i.e., 0.123 V). (b) Which one of the following chemical reactions describes the process occurring in the electrochemical cell? 12NO(g) + 3CI(aq) → 9N20(g) + 2CIO3¬(aq) 3N20(g) + CIO3 (aq) → 6NO(g) + CI¯(aq) 6NO(g) + CI¯(aq) → 3N20(g) + ClO3¯(aq) 9N20(g) + 2CIO3 (aq) → 12NO(g) + 3CI¯(aq) (c) What is AG (in kJ/mol)? Report your answer to three significant figures in scientific notation (i.e., 1.23e2 kJ/mol).
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