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The standard reduction reactions for the two metals are listed below: Sn(aq) +2e--> Sn (s) E= -0.14 V A (ag) + 3e--> Al (s) E = -1.66 V Top blank: Which species is the anode? (Sn2+, Sn, Al3+, or Fe) Middle blank Which species is the cathode? (Sn2+, Sn, Al3+, or Fe) Bottom blank: What cell voltage is predicted if an electrochemical cell were to be constructed? (Be sure to include the appropriate sign and do not include units)

The standard reduction reactions for the two metals are listed below: Sn(aq) +2e--> Sn (s) E= -0.14 V A (ag) + 3e--> Al (s) E = -1.66 V Top blank: Which species is the anode? (Sn2+, Sn, Al3+, or Fe) Middle blank Which species is the cathode? (Sn2+, Sn, Al3+, or Fe) Bottom blank: What cell voltage is predicted if an electrochemical cell were to be constructed? (Be sure to include the appropriate sign and do not include units)

Chemistry: Principles and Practice
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 18.90QE
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7Please answer in normal notation 

The standard reduction reactions for the two metals are listed below Sn7ag)+2e--> Sn (s) E = -0.14 V A*ag) +3e--> Al (s) E = -1.66 V. Top blank: Which species is the anode? (Sn2+, Sn, Al3+, or Fe) Middle blank Which species is the cathode? (Sn2+, Sn. Al3+, or Fe) Bottom blank What cell voltage is predicted if an electrochemical cel were to be constructed? (Be sure to include the appropriate sign and do not include units)
Transcribed Image Text:The standard reduction reactions for the two metals are listed below Sn7ag)+2e--> Sn (s) E = -0.14 V A*ag) +3e--> Al (s) E = -1.66 V. Top blank: Which species is the anode? (Sn2+, Sn, Al3+, or Fe) Middle blank Which species is the cathode? (Sn2+, Sn. Al3+, or Fe) Bottom blank What cell voltage is predicted if an electrochemical cel were to be constructed? (Be sure to include the appropriate sign and do not include units)
Expert Solution
Step 1

Given:

Sn2+(aq) +2e- →Sn(s)    E = -0.14 V   -----> (1)

Al3+(aq) + 3e- → Al(s)    E = -1.66 V  ------> (2)

 

since SRP of first reaction reaction is greater than second reaction. which means less negative value is greater than higher negative value.

Higher the SRP value Reduction

lower the SRP value oxidation.

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