Consider the following half-reactions: F2(g) + 2 e ® 2 F(aq) E° = +2.87 V Cu2+(aq) + 2 e ® Cu(s) Sn2*(aq) + 2 e" ® Sn(s) Al3+(aq) + 3 e¯ ® Al(s) Na*(aq) + e ® Na(s) E° = +0.337 V E° = -0.14 V E° = -1.66 V E° = -2.714 V Which of the above compounds or ions are able to reduce Al 3+*? O a. F2 and F" b. F2, Cu2+ and Sn2+ c. Na only d. F", Cu, and Sn e. Nat and Na
Consider the following half-reactions: F2(g) + 2 e ® 2 F(aq) E° = +2.87 V Cu2+(aq) + 2 e ® Cu(s) Sn2*(aq) + 2 e" ® Sn(s) Al3+(aq) + 3 e¯ ® Al(s) Na*(aq) + e ® Na(s) E° = +0.337 V E° = -0.14 V E° = -1.66 V E° = -2.714 V Which of the above compounds or ions are able to reduce Al 3+*? O a. F2 and F" b. F2, Cu2+ and Sn2+ c. Na only d. F", Cu, and Sn e. Nat and Na
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 151CP: Consider the following galvanic cell: Calculate the concentrations of Ag+(aq) and Ni2+(aq) once the...
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Transcribed Image Text:Consider the following half-reactions:
F2(g) + 2 e ® 2 F"(aq)
Cu2+(aq) + 2 e ® Cu(s)
Sn2
E° = +2.87 V
E° = +0.337 V
E° = -0.14 V
*(aq) + 2 e ® Sn(s)
AI3+(aq) + 3 e ® Al(s)
E° = -1.66 V
Na*(aq) + e¯ ® Na(s)
E° = -2.714 V
Which of the above compounds or ions are able to reduce Al 3+?
O a. F2 and F"
O b. F2, Cu2+ and Sn2+
c. Na only
O d. F", Cu, and Sn
e. Nat and Na
Transcribed Image Text:Consider the reaction:
NH3 (g) + HCI (g)
NH4CI (s)
Given the following table of thermodynamic data,
Substance AHf (kJ/mol) S° (J/mol - K)
NH 3 (g)
HCI (g)
NH4C1 (s) -314.4
-46.19
192.5
-92 30
186.69
94.6
determine the temperature (in °C) above which the reaction is nonspontaneous.
This reaction is spontaneous at all temperatures.
618.1
432.8
345.0
1235
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