When performing the "How Can the Identity of Metals be Determined?" investigation, copper (Eºred = 0.337V) was paired with unknown Metal IV to make a voltaic cell. First the potential was measured with red lead (cathode lead) attached to the copper, which read an Eº cell = -0.46 V. Next, the red and black leads were switched, and the black lead (anode lead) was attached to the copper, which read an Eºcell = +0.46 V. What is the Eºred for Metal IV? -0.797 V +0.797 V -0.123 V O +0.123 V
When performing the "How Can the Identity of Metals be Determined?" investigation, copper (Eºred = 0.337V) was paired with unknown Metal IV to make a voltaic cell. First the potential was measured with red lead (cathode lead) attached to the copper, which read an Eº cell = -0.46 V. Next, the red and black leads were switched, and the black lead (anode lead) was attached to the copper, which read an Eºcell = +0.46 V. What is the Eºred for Metal IV? -0.797 V +0.797 V -0.123 V O +0.123 V
Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter17: Electrochemistry
Section: Chapter Questions
Problem 36E: Consider a battery made from one half-cell that consists of a capper electrode in 1 M CuSO4 solution...
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Transcribed Image Text:When performing the "How Can the Identity of Metals be Determined?" investigation, copper (Eºred
= 0.337V) was paired with unknown Metal IV to make a voltaic cell. First the potential was
measured with red lead (cathode lead) attached to the copper, which read an Eºce
cell = -0.46 V. Next,
the red and black leads were switched, and the black lead (anode lead) was attached to the
copper, which read an Eºcell = +0.46 V. What is the Eºred for Metal IV?
-0.797 V
+0.797 V
-0.123 V
+0.123 V
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