electrochemical cell could be made from gallium, as represented by the following diagram. Gallium is a rare metal used in light-emitting diodes (LEDs). A student hypothesized that an Ga(s)- 0.10 mol/L- Ga³+ (aq), NO3(aq) Light bulb Reduction Half-reaction Ga³+ (aq) + 3e = Ga(s) C(s) 16. The half-reaction that occurs at the cathode is A. Ga³+ (aq) + 3 e¯ → Ga(s) B. Ga(s) → Ga³+ (aq) + 3 e C. Fe³+ (aq) + e → Fe²+ (aq) D. Fe²+ (aq) → Fe³+ (aq) + e¯ onse question 8. 0.10 mol/L Fe³+ (aq), NO₂ (aq) Porous cup Electrical Potential, E° (V) -0.55 umerical Response V. The cell potential for the electrochemical cell above is +/-. (Record your three-digit answer in the numerical-response section on the answer sheet.)
electrochemical cell could be made from gallium, as represented by the following diagram. Gallium is a rare metal used in light-emitting diodes (LEDs). A student hypothesized that an Ga(s)- 0.10 mol/L- Ga³+ (aq), NO3(aq) Light bulb Reduction Half-reaction Ga³+ (aq) + 3e = Ga(s) C(s) 16. The half-reaction that occurs at the cathode is A. Ga³+ (aq) + 3 e¯ → Ga(s) B. Ga(s) → Ga³+ (aq) + 3 e C. Fe³+ (aq) + e → Fe²+ (aq) D. Fe²+ (aq) → Fe³+ (aq) + e¯ onse question 8. 0.10 mol/L Fe³+ (aq), NO₂ (aq) Porous cup Electrical Potential, E° (V) -0.55 umerical Response V. The cell potential for the electrochemical cell above is +/-. (Record your three-digit answer in the numerical-response section on the answer sheet.)
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
Section: Chapter Questions
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:Use the following information to answer question 16 and numerical-response question 8.
Gallium is a rare metal used in light-emitting diodes (LEDs). A student hypothesized that an
electrochemical cell could be made from gallium, as represented by the following diagram.
Ga(s)-
0.10 mol/L
Ga³+ (aq), NO3- (aq)
Light bulb
Reduction Half-reaction
Ga³+ (aq) + 3e = Ga(s)
C(s)
16. The half-reaction that occurs at the cathode is
A. Ga³+ (aq) + 3 e¯ → Ga(s)
B.
Ga(s) → Ga³+ (aq) +3 e
C. Fe³+ (aq) + e → > Fe²+ (aq)
D. Fe²+ (aq) → Fe³+ (aq) + e-
0.10 mol/L
Fe³+ (aq), NO3(aq)
Porous cup
Electrical Potential, E° (V)
-0.55
Numerical Response
V.
8. The cell potential for the electrochemical cell above is +/-
(Record your three-digit answer in the numerical-response section on the answer sheet.)
XE
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