16. Consider the following half-cells under standard conditions: Electrolyte X* (aq) Y²*(aq) and Y³*(aq) Z* (aq) Half cell Electrode I Metal X II Platinum III Metal Z In an electrochemical cell constructed with half-cell I and half-cell II, the electrode in half-cell II is the negative terminal. In an electrochemical cell constructed with half-cell II and half-cell III, the electrode in half-cell III is negative terminal. Which is the strongest oxidant? A X*(aq) B Y"(aq) Y*(aq) D Z*(aq) 17. Given the standard reduction potentials: E° = +0.960 V NO3 (aq) + 4H* (aq) + 3e¯ = NO (aq) + 2H2O (1) Fe* (aq) + 3e Fe (s) E° = +0.771 V What is E° for the following overall reaction? 4H* (aq) + Fe (s) + NO3 (aq) = Fe* (aq) + NO (aq) + 2H2O (1) A +0.189 V B -1.731 V С 0.189 V D +1.731 V 18. How long would it take to electroplate a box with 28.3 g of silver (107.87 g/mol) at a current of 2.0 A in a solution of AgCl? A 211 min B 844 min C 422 min D 105 min

16. Consider the following half-cells under standard conditions: Electrolyte X* (aq) Y²(aq) and Y³(aq) Z* (aq) Half cell Electrode I Metal X II Platinum III Metal Z In an electrochemical cell constructed with half-cell I and half-cell II, the electrode in half-cell II is the negative terminal. In an electrochemical cell constructed with half-cell II and half-cell III, the electrode in half-cell III is negative terminal. Which is the strongest oxidant? A X(aq) B Y"(aq) Y(aq) D Z(aq) 17. Given the standard reduction potentials: E° = +0.960 V NO3 (aq) + 4H (aq) + 3e¯ = NO (aq) + 2H2O (1) Fe* (aq) + 3e Fe (s) E° = +0.771 V What is E° for the following overall reaction? 4H* (aq) + Fe (s) + NO3 (aq) = Fe* (aq) + NO (aq) + 2H2O (1) A +0.189 V B -1.731 V С 0.189 V D +1.731 V 18. How long would it take to electroplate a box with 28.3 g of silver (107.87 g/mol) at a current of 2.0 A in a solution of AgCl? A 211 min B 844 min C 422 min D 105 min

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.50QE

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Similar questions

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