Given the following two half-reactions, write the overall balanced reaction in the direction in which it is spontaneous and calculate the standard cell potential. Ga3+(aq) + 3 e¯→ Ga(s) E° = -0.53 V Sn4+(aq) + 2 e¯ → Sn2*(aq) E° = +0.15 V 3 Ga(s) + 2 Sn(aq) → 3 Ga3+(aq) + 2 Sn2+ 4+ (aq) cell = +0.38 V O 2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn2+ (aq) cell +0.68 V O 2 Ga3+(aq) + 3 Sn2*(aq) → 2 Ga(s) + 3 Sn4+ (aq) == +0.68 V %3D O 3 Ga3+(aq) + 2 Sn2*(aq) → 3 Ga(s) + 2 Sn4+ (aq) cell = - :-1.89 V 2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn²+ (aq) cell +1.89 V
Given the following two half-reactions, write the overall balanced reaction in the direction in which it is spontaneous and calculate the standard cell potential. Ga3+(aq) + 3 e¯→ Ga(s) E° = -0.53 V Sn4+(aq) + 2 e¯ → Sn2*(aq) E° = +0.15 V 3 Ga(s) + 2 Sn(aq) → 3 Ga3+(aq) + 2 Sn2+ 4+ (aq) cell = +0.38 V O 2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn2+ (aq) cell +0.68 V O 2 Ga3+(aq) + 3 Sn2*(aq) → 2 Ga(s) + 3 Sn4+ (aq) == +0.68 V %3D O 3 Ga3+(aq) + 2 Sn2*(aq) → 3 Ga(s) + 2 Sn4+ (aq) cell = - :-1.89 V 2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn²+ (aq) cell +1.89 V
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
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Given the following two half-reactions, write
the overall balanced reaction in the direction
in which it is spontaneous and calculate the
standard cell potential.
Ga3+(aq) + 3 e¯→ Ga(s)
E° = -0.53 V
Sn4+(aq) + 2 e¯ → Sn2*(aq) E° = +0.15 V
3 Ga(s) + 2 Sn(aq) → 3 Ga3+(aq) + 2 Sn2+
4+
(aq)
cell =
+0.38 V
O 2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn2+
(aq)
cell
+0.68 V
O 2 Ga3+(aq) + 3 Sn2*(aq) → 2 Ga(s) + 3 Sn4+
(aq)
== +0.68 V
%3D
O 3 Ga3+(aq) + 2 Sn2*(aq) → 3 Ga(s) + 2 Sn4+
(aq)
cell = -
:-1.89 V
2 Ga(s) + 3 Sn4+(aq) → 2 Ga3+(aq) + 3 Sn²+
(aq)
cell
+1.89 V
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