Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.49QE: A half-cell that consists of a copper wire in a 1.00 M Cu(NO3)2 solution is connected by a salt...
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Question
Transcribed Image Text:A student wishes to determine the chloride
ion concentration in a water sample at 25
°C using a galvanic cell constructed with a
graphite electrode and a half-cell of AgCl(s)
+ e- → Ag(s) + Cl-(aq) E°red = 0.2223 V And a
copper electrode with 0.500 M Cu²+ as the
second half cell Cu²+(aq) + 2 e- → Cu(s)
E°red= 0.337 V The measured cell potential
when the water sample was placed into the
silver side of the cell was O.0761 V. Given
the standard cell potential for this cell is
0.115 V, what is the value of the standard
free energy (in kJ) for this reaction?
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