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Ni+ (ag) + Cd(s) → Ni(s) + Cd²+ (aq) E¨ cell = +0.15 V Under standard conditions, a Ni-Cd galvanic cell generates a potential of +0.15 V using the chemical reaction represented above. Which of the following best explains how Ni+] >1 M affects the cell potential if this is the only change made to the operation of the galvanic cell? The ratio is smaller if (Ni+1>1 M, resulting in Q < 1 and Ecell > E¨ cœl- A Ca is smaller if (Ni+] > 1 M, resulting in Q > 1 and Ecell > E¨ cell B The ratio NP The ratio N Ca is larger if Ni+] >1 M, resulting in Q > 1 and E 1 M, resulting in Q < 1 and Ecel < E°cetl The ratio

Ni+ (ag) + Cd(s) → Ni(s) + Cd²+ (aq) E¨ cell = +0.15 V Under standard conditions, a Ni-Cd galvanic cell generates a potential of +0.15 V using the chemical reaction represented above. Which of the following best explains how Ni+] >1 M affects the cell potential if this is the only change made to the operation of the galvanic cell? The ratio is smaller if (Ni+1>1 M, resulting in Q < 1 and Ecell > E¨ cœl- A Ca is smaller if (Ni+] > 1 M, resulting in Q > 1 and Ecell > E¨ cell B The ratio NP The ratio N Ca is larger if Ni+] >1 M, resulting in Q > 1 and E 1 M, resulting in Q < 1 and Ecel < E°cetl The ratio

Chemistry
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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Half-Reaction Standard Reduction Potential, E (V) Ag+ (ag) + e- –→ Ag(s) +0.80 Au+(ag) + 3 e- → Au(s) +1.50 Two different electrolytic cells are constructed to electroplate two identical objects based on the half-reactions given in the table above. An object will be plated with a certain number of moles of Au in one cell, and in the other cell another object will be plated with the same number of moles of Ag in the same amount of time. Which of the following mathematical relationships can be used to determine how much more current is needed to electroplate an object with Au than to electroplate it with Ag? A The difference in standard reduction potential of Au+ and Ag is 0.70 V. B Three times more electrons are needed to reduce Au (ag) to Au(s) than are needed to reduce Ag (ag) to Ag(s) AGʻ is more negative for the reduction of Au**(ag) to Au(s) than for the reduction of Ag¯(aq) to Ag(s). The molar-mass ratio of Aul is 196.97 107.87 Ag
Transcribed Image Text:Half-Reaction Standard Reduction Potential, E (V) Ag+ (ag) + e- –→ Ag(s) +0.80 Au+(ag) + 3 e- → Au(s) +1.50 Two different electrolytic cells are constructed to electroplate two identical objects based on the half-reactions given in the table above. An object will be plated with a certain number of moles of Au in one cell, and in the other cell another object will be plated with the same number of moles of Ag in the same amount of time. Which of the following mathematical relationships can be used to determine how much more current is needed to electroplate an object with Au than to electroplate it with Ag? A The difference in standard reduction potential of Au+ and Ag is 0.70 V. B Three times more electrons are needed to reduce Au (ag) to Au(s) than are needed to reduce Ag (ag) to Ag(s) AGʻ is more negative for the reduction of Au**(ag) to Au(s) than for the reduction of Ag¯(aq) to Ag(s). The molar-mass ratio of Aul is 196.97 107.87 Ag
Ni+ (ag) + Cd(s) → Ni(s) + Cd²+ (aq) E cell = +0.15 V Under standard conditions, a Ni-Cd galvanic cell generates a potential of +0.15 V using the chemical reaction represented above. Which of the following best explains how [Ni+] > 1 M affects the cell potential if this is the only change made to the operation of the galvanic cell? is smaller if [Ni+1 >1 M, resulting in Q < 1 and Eu> Ecel |N1 The ratio Ca*] is smaller if (Ni?+] >1 M, resulting in Q > l and E > E B The ratio N is larger if (Ni+] >1 M, resulting in Q > 1 and Ecell < E° cel: The ratio (N is larger if [Ni+] >1 M, resulting in Q < 1 and E [Ca*] E cell D The ratio
Transcribed Image Text:Ni+ (ag) + Cd(s) → Ni(s) + Cd²+ (aq) E cell = +0.15 V Under standard conditions, a Ni-Cd galvanic cell generates a potential of +0.15 V using the chemical reaction represented above. Which of the following best explains how [Ni+] > 1 M affects the cell potential if this is the only change made to the operation of the galvanic cell? is smaller if [Ni+1 >1 M, resulting in Q < 1 and Eu> Ecel |N1 The ratio Ca*] is smaller if (Ni?+] >1 M, resulting in Q > l and E > E B The ratio N is larger if (Ni+] >1 M, resulting in Q > 1 and Ecell < E° cel: The ratio (N is larger if [Ni+] >1 M, resulting in Q < 1 and E [Ca*] E cell D The ratio
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