Question

Which of the following is correct for a voltaic cell constructed with Fe/Fe2+ and Zn/Zn2+? Fe2+...

Which of the following is correct for a voltaic cell constructed with Fe/Fe2+ and Zn/Zn2+?

Fe2+ + 2 e− -> Fe (ΔG° = 84.9 kJ/mol)

Zn2+ + 2 e− -> Zn (ΔG° = 146.7 kJ/mol)

A) The Fe electrode is the anode, and electrons flow from Fe to Zn

B) The Fe electrode is the anode, and electrons flow from Zn to Fe

C) The Zn electrode is the anode, and electrons flow from Fe to Zn

D) The Zn electrode is the anode, and electrons flow from Zn to Fe

The answer is D. Please completely explain why.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A) A galvanic cell Zn(s)|Zn2+(aq) || Ni2+(aq)|Ni(s) is constructed using a completely immersed Zn electrode that...
A) A galvanic cell Zn(s)|Zn2+(aq) || Ni2+(aq)|Ni(s) is constructed using a completely immersed Zn electrode that weighs 43.2 g and a Ni electrode immersed in 503 mL of 1.00 M Ni2+(aq) solution. A steady current of 0.0555 A is drawn from the cell as the electrons move from the Zn electrode to the Ni electrode. Which reactant is the limiting reactant in this cell? Enter symbol ___________ How long does it take for the cell to be completely discharged? _____s...
1. Consider the following reaction at 298K. Fe2+(aq) + Zn (s) --> Fe (s) + Zn2+(aq)...
1. Consider the following reaction at 298K. Fe2+(aq) + Zn (s) --> Fe (s) + Zn2+(aq) Which of the following statements are correct? Choose all that apply. A. n = 4 mol electrons B. delta Go < 0 C. Eocell < 0 D. The reaction is reactant-favored. E. K > 1 2. Consider the following reaction at 298K. 3 Fe2+(aq) + 2 Cr (s) -- > 3 Fe (s) + 2 Cr3+(aq) Which of the following statements are correct? Choose...
Enter electrons as e-. A voltaic cell is constructed in which the anode is a Mg|Mg2+...
Enter electrons as e-. A voltaic cell is constructed in which the anode is a Mg|Mg2+ half cell and the cathode is a Zn|Zn2+ half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: __(aq)(s)(l)(g) + __(aq)(s)(l)(g) -----> __(aq)(s)(l)(g) + __(aq)(s)(l)(g) The cathode reaction is: __(aq)(s)(l)(g) + __(aq)(s)(l)(g) ----->...
Electrochemical Cell Potentials Table 1: Electrochemical Cell Potentials Cell Measured Total Potential from Multimeter (V)1 Individual...
Electrochemical Cell Potentials Table 1: Electrochemical Cell Potentials Cell Measured Total Potential from Multimeter (V)1 Individual Half-Cell Potentials Cell Reactions5 ΔG (kJ)6 (Cu) Electrode Standard Potential (V)2 Metal Electrode Experimental Potential (V)3 Metal Electrode Theoretical Potential (V)4 Metal Electrode Potential % Error Cu | Sn 0.469 0.34 V 0.34-0.469 =-0.129 Cathode:       Cu2+ + 2e- -> Cu Anode:            Sn ->Sn2++ 2e- Net:          Cu2+ + Sn -> Cu + Sn2+ Cu | Al 0.796 0.34 V 0.34-0.796 =-0.456 Cathode:   Cu2+ +...
Enter electrons as e-. A voltaic cell is constructed in which the anode is a Cu|Cu2+...
Enter electrons as e-. A voltaic cell is constructed in which the anode is a Cu|Cu2+ half cell and the cathode is a F-|F2 half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + + The cathode reaction is: + + The net cell reaction is: + +...
Problem 20.29 A voltaic cell similar to that shown in Figure 20.5 in the textbook is...
Problem 20.29 A voltaic cell similar to that shown in Figure 20.5 in the textbook is constructed. One electrode compartment consists of a silver strip placed in a solution of AgNO3, and the other has an iron strip placed in a solution of FeCl2. The overall cell reaction is Fe(s)+2Ag+(aq)→Fe2+(aq)+2Ag(s) Part A What is being oxidized? Express your answer as a chemical expression. SubmitMy AnswersGive Up Part B What is being reduced? Express your answer as a chemical expression. SubmitMy...
A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s)....
A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s). A) What is the emf of this cell when [Ni2+]= 3.70 M and [Zn2+]= 0.100 M ? Express your answer using two significant figures. B) What is the emf of the cell when [Ni2+]= 0.270 M and [Zn2+]= 0.860 M ? Express your answer using two significant figures.
1)A voltaic cell is constructed in which the anode is a I-|I2 half cell and the...
1)A voltaic cell is constructed in which the anode is a I-|I2 half cell and the cathode is a Cl-|Cl2 half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external circuit, electrons migrate _____the I-|I2 electrode ____...
A voltaic cell is constructed based on the following reaction and initial concentrations: Fe2+( F e...
A voltaic cell is constructed based on the following reaction and initial concentrations: Fe2+( F e 2 + ( 0.0045 M)+Ag+( ) + A g + ( 2.3 M M )⇌ ) ⇌ Fe3+( F e 3 + ( 0.0045 M M )+Ag(s) -Calculate [Fe2+]when the cell reaction reaches equilibrium.
A standard galvanic cell is constructed in which a Cu2+ | Cu+ half cell acts as...
A standard galvanic cell is constructed in which a Cu2+ | Cu+ half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) As the cell runs, anions will migrate from the Cu2+|Cu+ compartment to the other compartment. Cu+ is oxidized at the cathode. The anode compartment could be Ag+|Ag. The anode reaction could be Fe -> Fe2+ + 2e-. In the external circuit, electrons...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT