Cr2O7 2- (aq) + 14H+ 6e- ---> Cr3+(aq) + 7H2O(l) Ered = 1.33V Cu2+(aq) + 2e- --> Cu(s) ?°red = 0.34V Determine the Ecell at 25°C, given: [Cr2O7(aq) 2- ] = 0.2500M ,[Cr(aq) 3+ ] = 0.2500M , pH =5 [Cu2+]=0.2500M
Cr2O7 2- (aq) + 14H+ 6e- ---> Cr3+(aq) + 7H2O(l) Ered = 1.33V Cu2+(aq) + 2e- --> Cu(s) ?°red = 0.34V Determine the Ecell at 25°C, given: [Cr2O7(aq) 2- ] = 0.2500M ,[Cr(aq) 3+ ] = 0.2500M , pH =5 [Cu2+]=0.2500M
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter16: Thermodynamics
Section: Chapter Questions
Problem 2E: What is a nonspontaneous reaction?
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Cr2O7 2- (aq) + 14H+ 6e- ---> Cr3+(aq) + 7H2O(l)
Ered = 1.33V
Cu2+(aq) + 2e- --> Cu(s)
?°red = 0.34V
Determine the Ecell at 25°C, given: [Cr2O7(aq) 2- ] = 0.2500M ,[Cr(aq) 3+ ] = 0.2500M , pH =5 [Cu2+]=0.2500M
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