Which of the following reactions is NOT spontaneous under standard conditions? Select one: a. 2Fe"taq) + 3Nis) -> 2Fes + 3NI aq) O b. Fe? (aq) + Nis) --> Fes + Ni", (aq) c. 2Fes + 3Br21e) -> 2Fe + 6Br ag) (aq) d. 2Fe"(aq) + Nis) --> 2Fe? (aq) + Ni2 (ag) The function of a salt bridge in an electrochemical cell is to allow for the flow of: Select one: a, electrons between electrodes O b. ions between half-cells c electrons between half-cells d. ions between electrodes A strip of copper is placed in a 1.00M solution of copper nitrate and a strip of silver is places in a 1M solution of silver nitrate. The two solutions are connected to a voltmeter. The follow standard reduction potentials are known: Ag lag) +e -->Ags) E° = +0.80V + 2e --> Cu E° = +0.34V When the voltmeter is removed and the two electrodes are connected by a wire, which of the following does NOT take place? Select one: a. negative ions pass through the salt bridge to the copper half-cell Ob. there is a net general movement of silver ions through the salt bridge to the copper half cell c electrons flow in the external circuit from the copper electrode to the silver electrode

Which of the following reactions is NOT spontaneous under standard conditions? Select one: a. 2Fe"taq) + 3Nis) -> 2Fes + 3NI aq) O b. Fe? (aq) + Nis) --> Fes + Ni", (aq) c. 2Fes + 3Br21e) -> 2Fe + 6Br ag) (aq) d. 2Fe"(aq) + Nis) --> 2Fe? (aq) + Ni2 (ag) The function of a salt bridge in an electrochemical cell is to allow for the flow of: Select one: a, electrons between electrodes O b. ions between half-cells c electrons between half-cells d. ions between electrodes A strip of copper is placed in a 1.00M solution of copper nitrate and a strip of silver is places in a 1M solution of silver nitrate. The two solutions are connected to a voltmeter. The follow standard reduction potentials are known: Ag lag) +e -->Ags) E° = +0.80V + 2e --> Cu E° = +0.34V When the voltmeter is removed and the two electrodes are connected by a wire, which of the following does NOT take place? Select one: a. negative ions pass through the salt bridge to the copper half-cell Ob. there is a net general movement of silver ions through the salt bridge to the copper half cell c electrons flow in the external circuit from the copper electrode to the silver electrode

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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