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

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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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

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
+

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