An oxidation half-reaction always involves the select an answerSelect an answer ✓●of Determine the cell of a voltaic cell composed of Cu(s) in a 1.00 M solution of Cu²+, and Cr(s) in a1.00 M solution of Cr³+ at 25.00°C.Cu(s)/Cu²+Eº = 0.342 VCr(s)/Cr³+Eº = -0.740 VV

Answered: Determine the Eell of a voltaic cell…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter20: Electrochemistry

Section: Chapter Questions

Problem 96A

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An oxidation half-reaction always involves the select an answer
Select an answer ✓
●
of

Determine the cell of a voltaic cell composed of Cu(s) in a 1.00 M solution of Cu²+, and Cr(s) in a
1.00 M solution of Cr³+ at 25.00°C.
Cu(s)/Cu²+
Eº = 0.342 V
Cr(s)/Cr³+
Eº = -0.740 V
V

Expert Solution

Step 1

We know that higher the standard reduction potential value, greater will be tendency to get reduce at cathode and lower the standard reduction potential value greater will be tendency to get oxidise at anode.

Therefore, from the given standard reduction potential of the copper electrode and chromium electrode.

E^° of copper is than the E^° of chromium

Hence, copper will reduce and chromium will oxidise.

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