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2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X. They determined that 3 electrons are involved in the reaction per mole of the unknown metal X. After applying 1.495 A of current for 18.00 hours, 17.41 g of the unknown metal was deposited to the electrode. Help Ate Shawol and Concertina determine the identity of the unknown metal X.

2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X. They determined that 3 electrons are involved in the reaction per mole of the unknown metal X. After applying 1.495 A of current for 18.00 hours, 17.41 g of the unknown metal was deposited to the electrode. Help Ate Shawol and Concertina determine the identity of the unknown metal X.

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 19.145QP
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2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X. They determined that 3 electrons are involved in the reaction per mole of the unknown metal X. After applying 1.495 A of current for 18.00 hours, 17.41 g of the unknown metal was deposited to the electrode. Help Ate Shawol and Concertina determine the identity of the unknown metal X. 3. Complete and balance the chemical reaction using method of half-reactions. Write your answer in your solution sheet. Cu(s) + NO3(aq) Cu²¹ (aq) + NO₂(g) (acidic solution)
Transcribed Image Text:2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X. They determined that 3 electrons are involved in the reaction per mole of the unknown metal X. After applying 1.495 A of current for 18.00 hours, 17.41 g of the unknown metal was deposited to the electrode. Help Ate Shawol and Concertina determine the identity of the unknown metal X. 3. Complete and balance the chemical reaction using method of half-reactions. Write your answer in your solution sheet. Cu(s) + NO3(aq) Cu²¹ (aq) + NO₂(g) (acidic solution)
1. A student constructed used 0.25 M Ni(NO3)2 a voltaic cell using nickel and lead as electrodes. He also 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), Eºr - 0.13 V red = - 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 used 0.25 M Ni(NO3)2 a voltaic cell using nickel and lead as electrodes. He also 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), Eºr - 0.13 V red = - 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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