2Sc(s) + Cr203 (aq) + 14H*(aq) → 2Sc3+ (aq) + 2Cr3+ (aq) + 7H20 (1) Cr20 (aq) + 14H* (aq) + 6e- → +2Cr3*(aq) + 7H20 (I) E =+1.33 V 2.1 The standard cell potential, Ecelt, for this cell is +3.70 V. Calculate the standard half-cell potential for Scandium (Sc). 2.2 Is the reaction reactant- or product favoured at 25°C ? Why? Calculate the cell potential, Ecett When [Cr,03¯] = 6.2 x 10-SM, [Sc*] = 0.35 M, [Cr3+] = 0.75 M, and pH =1.85 2.3 2.4 What is the maximum electrical work (in k/) that can be done by this cell?
2Sc(s) + Cr203 (aq) + 14H*(aq) → 2Sc3+ (aq) + 2Cr3+ (aq) + 7H20 (1) Cr20 (aq) + 14H* (aq) + 6e- → +2Cr3*(aq) + 7H20 (I) E =+1.33 V 2.1 The standard cell potential, Ecelt, for this cell is +3.70 V. Calculate the standard half-cell potential for Scandium (Sc). 2.2 Is the reaction reactant- or product favoured at 25°C ? Why? Calculate the cell potential, Ecett When [Cr,03¯] = 6.2 x 10-SM, [Sc*] = 0.35 M, [Cr3+] = 0.75 M, and pH =1.85 2.3 2.4 What is the maximum electrical work (in k/) that can be done by this cell?
General Chemistry - Standalone book (MindTap Course List)
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Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.106QP: Give the notation for a voltaic cell whose overall cell reaction is Mg(s)+2Ag+(aq)Mg2+(aq)+2Ag(s)...
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Question
![Consider the following voltaic cell reaction:
2Sc(s) + Cr203 (aq) + 14H*(aq) → 2Sc3+ (aq) + 2Cr3+ (aq) + 7H20 (1)
Cr203 (aq) + 14H* (aq) + 6e- → +2Cr3+(aq) + 7H20 (1)
Ered = +1.33 V
2.1 The standard cell potential, Eeu, for this cell is +3.70 V. Calculate the standard half-cell
potential for Scandium (Sc).
2.2
Is the reaction reactant- or product favoured at 25°C ? Why?
Calculate the cell potential, Ecell when [Cr,03-] = 6.2 x 10-5M, [Sc3+] = 0.35 M, [Cr3+] =
2.3
0.75 M, and pH =1.85
2.4 What is the maximum electrical work (in k/) that can be done by this cell?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c709491-c1c3-4bea-8ba9-bff5a7894e8e%2F9225ea83-3143-44d5-ae55-2f93b7b2cbc8%2Fc69e5b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider the following voltaic cell reaction:
2Sc(s) + Cr203 (aq) + 14H*(aq) → 2Sc3+ (aq) + 2Cr3+ (aq) + 7H20 (1)
Cr203 (aq) + 14H* (aq) + 6e- → +2Cr3+(aq) + 7H20 (1)
Ered = +1.33 V
2.1 The standard cell potential, Eeu, for this cell is +3.70 V. Calculate the standard half-cell
potential for Scandium (Sc).
2.2
Is the reaction reactant- or product favoured at 25°C ? Why?
Calculate the cell potential, Ecell when [Cr,03-] = 6.2 x 10-5M, [Sc3+] = 0.35 M, [Cr3+] =
2.3
0.75 M, and pH =1.85
2.4 What is the maximum electrical work (in k/) that can be done by this cell?
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