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18.83. Calculate the minimum (least negative) cathode potential (versus SHE) needed to begin electroplating nickel from 0.35 M Ni2+ onto a piece of iron.

18.83. Calculate the minimum (least negative) cathode potential (versus SHE) needed to begin electroplating nickel from 0.35 M Ni2+ onto a piece of iron.

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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I’m stuck how can I understand part 18:83 please
in n e " nine A 6 electrolysis? Explain why or why not. 18.82. In the electrolysis of water, how long will it take to produce 1.00 x 102 L of H₂ at STP (273 K and 1.00 atm) by using an electrolytic cell through which the current is 52 mA? 18.83. Calculate the minimum (least negative) cathode potential (versus SHE) needed to begin electroplating nickel from 0.35 M Ni2+ onto a piece of iron. *18.84. What is the minimum (least negative) cathode potential (versus SHE) needed to electroplate silver onto cutlery in a solution of Ag and NH3 in which most of the silver ions are present as the complex, Ag(NH3)2, and the concentration of Ag+ (aq) is only 2.50 × 10-4 M? Fuel Cells Concept Review 18.85. Describe two advantages of hybrid (gasoline engine- electric motor) power systems over all-electric systems based on fuel cells. Describe two disadvantages. 18.86. Describe three factors limiting widespread use of cars powered by fuel cells. 18.87. Methane can serve as the fuel for electric cars powered by fuel MacBook Pro 0 Y & 7 Ã * 8 14 I ( 9 < 0 this ) 0 P { I } 1
Transcribed Image Text:in n e " nine A 6 electrolysis? Explain why or why not. 18.82. In the electrolysis of water, how long will it take to produce 1.00 x 102 L of H₂ at STP (273 K and 1.00 atm) by using an electrolytic cell through which the current is 52 mA? 18.83. Calculate the minimum (least negative) cathode potential (versus SHE) needed to begin electroplating nickel from 0.35 M Ni2+ onto a piece of iron. *18.84. What is the minimum (least negative) cathode potential (versus SHE) needed to electroplate silver onto cutlery in a solution of Ag and NH3 in which most of the silver ions are present as the complex, Ag(NH3)2, and the concentration of Ag+ (aq) is only 2.50 × 10-4 M? Fuel Cells Concept Review 18.85. Describe two advantages of hybrid (gasoline engine- electric motor) power systems over all-electric systems based on fuel cells. Describe two disadvantages. 18.86. Describe three factors limiting widespread use of cars powered by fuel cells. 18.87. Methane can serve as the fuel for electric cars powered by fuel MacBook Pro 0 Y & 7 Ã * 8 14 I ( 9 < 0 this ) 0 P { I } 1
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