Ivanic uonenbe (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (5). If a box is not needed, leave it blank.) H2O2 + 2H+ + 2e¯ →2H2O e = 1.78 V Cr20,2- +14H+ + 6e¯ →2 Cr³+ + 7H2O e° = 1.33 V V 2H+ b. + 2e → H2 e° = 0.00 V Lat + 3e- →La e° = -2.37 V V +
Ivanic uonenbe (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (5). If a box is not needed, leave it blank.) H2O2 + 2H+ + 2e¯ →2H2O e = 1.78 V Cr20,2- +14H+ + 6e¯ →2 Cr³+ + 7H2O e° = 1.33 V V 2H+ b. + 2e → H2 e° = 0.00 V Lat + 3e- →La e° = -2.37 V V +
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
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the standard potential...
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Question
![Give the balanced cell equation and determine e° for the galvanic cells based on the following half-reactions.
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (5). If a box is not needed, leave it blank.)
e° = 1.78 V
Cr2 O,2- + 14H+ + 6e- →2 Cr³+ + 7H2O e° = 1.33 V
H2O2 + 2H+ + 2e¯ → 2H2O
a.
V
+
+
+
2H+ + 20→H2
e° = 0.00 V
La+ + 3e-La e° = -2.37 V
b.
V
+](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b5e2f00-bb08-4938-ae6e-f911d1c90442%2F7e31b98d-dbb0-42d4-9780-5490fa201b67%2Fqxpmxuj_processed.png&w=3840&q=75)
Transcribed Image Text:Give the balanced cell equation and determine e° for the galvanic cells based on the following half-reactions.
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (5). If a box is not needed, leave it blank.)
e° = 1.78 V
Cr2 O,2- + 14H+ + 6e- →2 Cr³+ + 7H2O e° = 1.33 V
H2O2 + 2H+ + 2e¯ → 2H2O
a.
V
+
+
+
2H+ + 20→H2
e° = 0.00 V
La+ + 3e-La e° = -2.37 V
b.
V
+
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