p20) Select all of the metals to the right that O Au Онg O Mn O La could act as a sacrificial anode for Fe. A current of 5.70 A is passed through a solution containing Fe2+(aq) solution for 45 min. How many moles of Fe (s) can be produced by this process? Show your work. On lo arnale woonoes moles of Fe = E° Standard Reduction Potentials at 25°C + 2.87 V F2 (aq) + 2 e¯ → 2F (aq) +1.50 V Au3+ (aq) + 3 e → Au (s) Hgz+ (aq) + 2 e Hg (1) + 0.80 V I2 (s) + 2 e¯ → 21- (aq) + 0.54 V 2 H+ (aq) + 2e → H2 (g) 0.00 V Co2+ (aq) + 2 e Co (s) -0.28 V Fe2+ (aq) + 2e- → Fe (s) -0.45 V Fe2+ (ag) + 2 e¯ → Fe (s) -0.83 V H,0 (1) + 2 e→ H2 (g) + 2 OH¯ (aq) -1.18 V La3+ (aq) + 3 e → La (s) -2.38 V K* (aq) + e → K(s) -2.93 V Cag) +2e mncs -118V

p20) Select all of the metals to the right that O Au Онg O Mn O La could act as a sacrificial anode for Fe. A current of 5.70 A is passed through a solution containing Fe2+(aq) solution for 45 min. How many moles of Fe (s) can be produced by this process? Show your work. On lo arnale woonoes moles of Fe = E° Standard Reduction Potentials at 25°C + 2.87 V F2 (aq) + 2 e¯ → 2F (aq) +1.50 V Au3+ (aq) + 3 e → Au (s) Hgz+ (aq) + 2 e Hg (1) + 0.80 V I2 (s) + 2 e¯ → 21- (aq) + 0.54 V 2 H+ (aq) + 2e → H2 (g) 0.00 V Co2+ (aq) + 2 e Co (s) -0.28 V Fe2+ (aq) + 2e- → Fe (s) -0.45 V Fe2+ (ag) + 2 e¯ → Fe (s) -0.83 V H,0 (1) + 2 e→ H2 (g) + 2 OH¯ (aq) -1.18 V La3+ (aq) + 3 e → La (s) -2.38 V K* (aq) + e → K(s) -2.93 V Cag) +2e mncs -118V

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 97E: What volume of F2 gas, at 25C and 1.00 atm, is produced when molten KF is electrolyzed by a current...

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Question

Question is in photo, sacrificial anodes and miles of Fe

p20)
Select all of the metals to the right that
O Au
Онg
O Mn
O La
could act as a sacrificial anode for Fe.
A current of 5.70 A is passed through a solution containing Fe2+(aq) solution for 45 min.
How many moles of Fe (s) can be produced by this process? Show your work.
On lo arnale woonoes
moles of Fe =

E°
Standard Reduction Potentials at 25°C
+ 2.87 V
F2 (aq) + 2 e¯ → 2F (aq)
+1.50 V
Au3+ (aq) + 3 e → Au (s)
Hgz+ (aq) + 2 e
Hg (1)
+ 0.80 V
I2 (s) + 2 e¯ → 21- (aq)
+ 0.54 V
2 H+ (aq) + 2e → H2 (g)
0.00 V
Co2+ (aq) + 2 e Co (s)
-0.28 V
Fe2+ (aq) + 2e-
→ Fe (s)
-0.45 V
Fe2+ (ag) + 2 e¯ → Fe (s)
-0.83 V
H,0 (1) + 2 e→ H2 (g) + 2 OH¯ (aq)
-1.18 V
La3+ (aq) + 3 e
→ La (s)
-2.38 V
K* (aq) + e → K(s)
-2.93 V
Cag) +2e mncs
-118V

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