A voltaic cell is constructed from a standardCu²+ Cu half cell (E° red%3D0.337V) and a standardAl³+ |Al half cell (E°red-1.660V).(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed,leave it blank.)The anode reaction is:Al(s)Al3+(аq)+ЗеThe cathode reaction is:Cu²* (aq)2eCu(s)++The spontaneous cell reaction is:2Al(s)+ 3Cu2* (aq)2A1³*(aq)+ 3Cu2*(aq)The cell voltage is 1.997V.An error has been detected in your answer. Check for typos,miscalculations etc. before submitting your answer.PreviousNext+

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A voltaic cell is constructed from a standard Cu?+ Cu half cell (E° red %3D 0.337V) and a standard Al3+ Al half cell (E° red %D -1.660V). (Use the lowest possible coefficients. Be sure to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: Al(s) | A1³* (aq) + 3e The cathode reaction is: (aq) 2e Cu(s) + The spontaneous cell reaction is: 3CU2* (aq) | 2A13* (aq) 3CU2*(aq) 13+ 2Al(s) (аq) + + The cell voltage is 1.997 V. An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. Previous Next + +

A voltaic cell is constructed from a standard Cu?+ Cu half cell (E° red %3D 0.337V) and a standard Al3+ Al half cell (E° red %D -1.660V). (Use the lowest possible coefficients. Be sure to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: Al(s) | A1³* (aq) + 3e The cathode reaction is: (aq) 2e Cu(s) + The spontaneous cell reaction is: 3CU2* (aq) | 2A13* (aq) 3CU2*(aq) 13+ 2Al(s) (аq) + + The cell voltage is 1.997 V. An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. Previous Next + +

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 120AE

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For each reaction listed, determine its standard cell potential at 25 C and whether the reaction is spontaneous at standard conditions. (a) Mn(s)+Ni2+(aq)Mn2+(aq)+Ni(s) (b) 3Cu2+(aq)+2Al(s)2Al3+(aq)+3Cu(s) (c) Na(s)+LiNO3(aq)NaNO3(aq)+Li(s) (d) Ca(NO3)2(aq)+Ba(s)Ba(NO3)2(aq)+Ca(s)
Consider a galvanic cell based on the following half-reactions: a. What is the expected cell potential with all components in their standard states? b. What is the oxidizing agent in the overall cell reaction? c. What substances make up the anode compartment? d. In the standard cell, in which direction do the electrons flow? e. How many electrons are transferred per unit of cell reaction? f. If this cell is set up at 25C with [Fe2+] = 2.00 104 M and [La3+] = 3.00 103 M, what is the expected cell potential?
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From the information provided, use cell notation to describe the following systems: (a) In one half-cell, a solution of Pt(NO3)2 forms Pt metal, while in the other half-Cell, Cu metal goes into a.Cu(NO3)2 solution with all solute concentrations 1 M. (b) The cathode consists of a gold electrode in a 0.55 M Au(NO3)3 solution and the anode is a magnesium electrode in 0.75 M Mg(NO3)2 solution. (c) One half-cell consists of a silver electrode in a 1 M AgNO3 solution, and in the other half-cell, a copper Electrode in 1 M Cu(NO3)2 is oxidized.
For a certain cell, G=25.0 kJ. Calculate E° if n is (a) 1(b)1(c) 41 Comment on the effect that the number of electrons exchanged has on the voltage of a cell.