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1. A student constructed a voltaic cell using nickel and lead as electrodes. He also used 0.25 M Ni(NO3)2 as the anolyte and 0.50 M Pb(NO3)2 as the catholyte. Ni²+ (aq) + 2e → Ni(s), Eºred = -0.25 V Pb²+ (aq) + 2e → Pb(s), Eºred = -0.13 V A. Write the balanced reaction occurring in the voltaic cell. Write your answers in your solution sheet. B. Compute the standard cell potential, Eºcell- C. Calculate the cell potential at 30 °C, Ecell- D. If the concentration of Ni(NO3)2 solution used was increased, what will be the effect on the measured potential? (increase, decrease, no effect)

1. A student constructed a voltaic cell using nickel and lead as electrodes. He also used 0.25 M Ni(NO3)2 as the anolyte and 0.50 M Pb(NO3)2 as the catholyte. Ni²+ (aq) + 2e → Ni(s), Eºred = -0.25 V Pb²+ (aq) + 2e → Pb(s), Eºred = -0.13 V A. Write the balanced reaction occurring in the voltaic cell. Write your answers in your solution sheet. B. Compute the standard cell potential, Eºcell- C. Calculate the cell potential at 30 °C, Ecell- D. If the concentration of Ni(NO3)2 solution used was increased, what will be the effect on the measured potential? (increase, decrease, no effect)

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.144QP
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1. A student constructed a voltaic cell using nickel and lead as electrodes. He also used 0.25 M Ni(NO3)2 as the anolyte and 0.50 M Pb(NO3)2 as the catholyte. Ni2+ (aq) + 2e → Ni(s), Eºred = -0.25 V Pb²+ (aq) + 2e → Pb(s), Eºred = -0.13 V A. Write the balanced reaction occurring in the voltaic cell. Write your answers in your solution sheet. B. Compute the standard cell potential, Eºcell- C. Calculate the cell potential at 30 °C, Ecell- D. If the concentration of Ni(NO3)2 solution used was increased, what will be the effect on the measured potential? (increase, decrease, no effect)
Transcribed Image Text:1. A student constructed a voltaic cell using nickel and lead as electrodes. He also used 0.25 M Ni(NO3)2 as the anolyte and 0.50 M Pb(NO3)2 as the catholyte. Ni2+ (aq) + 2e → Ni(s), Eºred = -0.25 V Pb²+ (aq) + 2e → Pb(s), Eºred = -0.13 V A. Write the balanced reaction occurring in the voltaic cell. Write your answers in your solution sheet. B. Compute the standard cell potential, Eºcell- C. Calculate the cell potential at 30 °C, Ecell- D. If the concentration of Ni(NO3)2 solution used was increased, what will be the effect on the measured potential? (increase, decrease, no effect)
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