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Consider the following cell diagram: Mg(s) | MgSO4(0.40 M) || NiSO4(0.60 M) | Ni(s) Calculate the cell voltage at 25°C. How does the cell voltage change when (a) [Mg2+] is decreased by a factor of 4 and (b) [Ni2+] is decreased by a factor of 3?

Consider the following cell diagram: Mg(s) | MgSO4(0.40 M) || NiSO4(0.60 M) | Ni(s) Calculate the cell voltage at 25°C. How does the cell voltage change when (a) [Mg2+] is decreased by a factor of 4 and (b) [Ni2+] is decreased by a factor of 3?

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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Consider the following cell diagram:

Mg(s) | MgSO4(0.40 M) || NiSO4(0.60 M) | Ni(s)

Calculate the cell voltage at 25°C. How does the cell voltage change when (a) [Mg2+] is decreased by a factor of 4 and (b) [Ni2+] is decreased by a factor of 3?

 

Activities and Assessments: 1. What is the emf of a galvanic cell consisting of a Cd²+/Cd half-cell and a Pt/H* /H2 half- cell if [Cd2+] = 0.20 M, [H*] = 0.16 M , and PH, = 0.80 atm? 2. Consider the cell diagram Mg(s)|M9SO,(0.40 M)||NiS0,(0.60 M)|Ni(s). Calculate the cell voltage at 25°C. How does the cell voltage change when: a. [Mg2+] is decreased by a factor of 4 b. [Ni2+] is decreased by a factor of 3 3. Consider the reaction at 25°C Mn02(s) + 4 Haq) + 2 Brīag) → Mnaq) + Br2(1) + 2H20(1) At what pH is the voltage zero if all other species are at standard conditions?
Transcribed Image Text:Activities and Assessments: 1. What is the emf of a galvanic cell consisting of a Cd²+/Cd half-cell and a Pt/H* /H2 half- cell if [Cd2+] = 0.20 M, [H*] = 0.16 M , and PH, = 0.80 atm? 2. Consider the cell diagram Mg(s)|M9SO,(0.40 M)||NiS0,(0.60 M)|Ni(s). Calculate the cell voltage at 25°C. How does the cell voltage change when: a. [Mg2+] is decreased by a factor of 4 b. [Ni2+] is decreased by a factor of 3 3. Consider the reaction at 25°C Mn02(s) + 4 Haq) + 2 Brīag) → Mnaq) + Br2(1) + 2H20(1) At what pH is the voltage zero if all other species are at standard conditions?
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