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A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions º His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. cell n A B C 1 1 1 calculated quantities (Check the box next to any that are wrong.) AG -76. kJ/mol O -145. kJ/mol 72. kJ/mol O O K 4.85 x 10 25 2.53 x 10 14 4.11 x 10 12 O O O X 0 E -0.79 V -1.50 V S -0.75 V ? O O db Ar

A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions º His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. cell n A B C 1 1 1 calculated quantities (Check the box next to any that are wrong.) AG -76. kJ/mol O -145. kJ/mol 72. kJ/mol O O K 4.85 x 10 25 2.53 x 10 14 4.11 x 10 12 O O O X 0 E -0.79 V -1.50 V S -0.75 V ? O O db Ar

Chemistry & Chemical Reactivity
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
Section19.9: Corrosion: Redox Reactions In The Environment
Problem 2.5ACP: Assume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in...
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A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. cell n A D B C 1 1 1 Explanation calculated quantities (Check the box next to any that are wrong.) AG -76. kJ/mol -145. kJ/mol 72. kJ/mol Check O 80 F3 K 14 4.85 x 10 O 25 2.53 × 10 4.11 x 10¹2 69 O O 999 000 F4 X 0 E -0.79 V -1.50 V -0.75 V % Ś ? BM 20 F5 O O O A F6 tv & F7 FB Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility AO OP OLT 28.0 F9 F10 . E . do Ar 4 B
Transcribed Image Text:A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. cell n A D B C 1 1 1 Explanation calculated quantities (Check the box next to any that are wrong.) AG -76. kJ/mol -145. kJ/mol 72. kJ/mol Check O 80 F3 K 14 4.85 x 10 O 25 2.53 × 10 4.11 x 10¹2 69 O O 999 000 F4 X 0 E -0.79 V -1.50 V -0.75 V % Ś ? BM 20 F5 O O O A F6 tv & F7 FB Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility AO OP OLT 28.0 F9 F10 . E . do Ar 4 B
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