A voltaic cell is constructed from a standard Cr3+ Cr half cell (E° red %3D -0.740V) and a standard Mn2+ Mn half cell (E° red -1.180V). (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + + The spontaneous cell reaction is: + The cell voltage is V. + ↑ +

A voltaic cell is constructed from a standard Cr3+ Cr half cell (E° red %3D -0.740V) and a standard Mn2+ Mn half cell (E° red -1.180V). (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + The cathode reaction is: + + The spontaneous cell reaction is: + The cell voltage is V. + ↑ +

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter19: Applications Of Standard Electrode Potentials

Section: Chapter Questions

Problem 19.8QAP

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Question

A voltaic cell is constructed from a standard
Cr3+ Cr half cell (E° red
%3D
-0.740V) and a standard
Mn2+ Mn half cell (E°
red
-1.180V).
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a
box is not needed, leave it blank.)
The anode reaction is:
+
The cathode reaction is:
+
+
The spontaneous cell reaction is:
+
The cell voltage is
V.
+
↑
+

A voltaic cell is constructed from a standard
Cu²+ Cu half cell (E°
red
0.337V) and a standard
Br2 |Br half cell (E°
1.080V).
red
(Use the lowest possible coefficients. Be sure to specify states such
as (aq) or (s). If a box is not needed, leave it blank.)
The anode reaction is:
+
+
The cathode reaction is:
+
The spontaneous cell reaction is:
+
The cell voltage is
V.
+
+
↑

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