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1. Write a balanced chemical equation for the overall cell reaction represented as a) Fe"/Fe* // MnO,/Mn²* b) Cr*/Cr20, // clo;/ci"

1. Write a balanced chemical equation for the overall cell reaction represented as a) Fe"/Fe* // MnO,/Mn²* b) Cr*/Cr20, // clo;/ci"

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. Write a balanced chemical equation for the overall cell reaction represented as a) Fe"/Fe* // MnO;/Mn²* b) Cr*/Cr,0; // CIO;/ci" 2+ 2. Calculate E° for the following voltaic cells: a) 2Na(s) + Fe“ (aq) → 2Na (aq) + Fe(s) b) 3S0, (aq) + 12H + 2Al (aq) + 2Als) → 3SO2(g) 3. Calculate E° for the following cells: (aq) + 6H,0 a) Cl,/CIO;//02/H,O b) OH/02//CIO;/C* (basic medium) 4. In a process called flash electroplating, a current of 2.5 x 10ʻ A passes through an electrolytic cell for 5 minutes. How many moles of electrons are driven through the cell? 5. Suppose that a batch of parts is plated with Copper in an electrolytic bath running at 0.15V and 15A for exactly 2 hrs. What is the energy cost of this process if the electric utility charges the company Php 4.05/KW-Hr. 6. Balance the reaction in both in acid solution and in basic solution. Mnoa (aq) + NO lao) → Mn2* + NO2 (ag) → Mn (aq) + NO3 (aq)
Transcribed Image Text:1. Write a balanced chemical equation for the overall cell reaction represented as a) Fe"/Fe* // MnO;/Mn²* b) Cr*/Cr,0; // CIO;/ci" 2+ 2. Calculate E° for the following voltaic cells: a) 2Na(s) + Fe“ (aq) → 2Na (aq) + Fe(s) b) 3S0, (aq) + 12H + 2Al (aq) + 2Als) → 3SO2(g) 3. Calculate E° for the following cells: (aq) + 6H,0 a) Cl,/CIO;//02/H,O b) OH/02//CIO;/C* (basic medium) 4. In a process called flash electroplating, a current of 2.5 x 10ʻ A passes through an electrolytic cell for 5 minutes. How many moles of electrons are driven through the cell? 5. Suppose that a batch of parts is plated with Copper in an electrolytic bath running at 0.15V and 15A for exactly 2 hrs. What is the energy cost of this process if the electric utility charges the company Php 4.05/KW-Hr. 6. Balance the reaction in both in acid solution and in basic solution. Mnoa (aq) + NO lao) → Mn2* + NO2 (ag) → Mn (aq) + NO3 (aq)
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