3. Consider the reaction at 25°C Mn02(s) + 4 Hiag) + 2 Brīag) → Mnag) + Brz) + 2H20) At what pH is the voltage zero if all other species are at standard conditions?
3. Consider the reaction at 25°C Mn02(s) + 4 Hiag) + 2 Brīag) → Mnag) + Brz) + 2H20) At what pH is the voltage zero if all other species are at standard conditions?
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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Answer for number 3 please
![Activities and Assessments:
1. What is the emf of a galvanic cell consisting of a Cd²+ /Cd half-cell and a Pt/H*/Hz half-
cell if [Cd²+] = 0.20 M, [H*] = 0.16 M , and P, = 0.80 atm?
2. Consider the cell diagram Mg(s)|Mgso,(0.40 M)||N¡SO,(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. [N12+] is decreased by a factor of 3
3. Consider the reaction at 25°C
Mn02(s) + 4 Hiag) + 2 Brīag) → Mnžag) + Brz1) + 2H20)
At what pH is the voltage zero if all other species are at standard conditions?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9a1be3f0-f6cc-43db-90c9-6ab89b2a652f%2F24793899-7171-411f-a147-4784ab634bf2%2Fio6sa2_processed.jpeg&w=3840&q=75)
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*/Hz half-
cell if [Cd²+] = 0.20 M, [H*] = 0.16 M , and P, = 0.80 atm?
2. Consider the cell diagram Mg(s)|Mgso,(0.40 M)||N¡SO,(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. [N12+] is decreased by a factor of 3
3. Consider the reaction at 25°C
Mn02(s) + 4 Hiag) + 2 Brīag) → Mnžag) + Brz1) + 2H20)
At what pH is the voltage zero if all other species are at standard conditions?
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