HomeworkLib
Question

Consider the concentration cell Sn(s) | Sn2+(aq, a(Sn2+)A) || Sn2+(aq, a(Sn2+)C) | Sn(s) The subscripts A...

Consider the concentration cell

Sn(s) | Sn2+(aq, a(Sn2+)A) || Sn2+(aq, a(Sn2+)C) | Sn(s)

The subscripts A and C in the activities a(Sn2+)A and a(Sn2+)C of the Sn2+(aq) ionic species refer, respectively, to the anodic and cathodic solutions. The standard reduction potential for the half reaction

Sn2+(s) + 2e- ===> Sn(s)

is E0(Sn2+/Sn) = -0.14 V.


What is the anode/cathode ratio of the activities of the Sn2+(aq) ion

a(Sn2+)C / a(Sn2+)A

if the electromotive force of the cell is E = 0.120 V.

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Request Professional Answer

Request Answer!

We need at least 10 more requests to produce the answer.

0 / 10 have requested this problem solution

The more requests, the faster the answer.

Request! (Login Required)

All students who have requested the answer will be notified once they are available.
Know the answer?
Add Answer to:
Consider the concentration cell Sn(s) | Sn2+(aq, a(Sn2+)A) || Sn2+(aq, a(Sn2+)C) | Sn(s) The subscripts A...
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

Similar Homework Help Questions

  • An electrochemical cell is based on these two half-reactions: Ox: Sn(s)→Sn2 + (aq, 1.55 mol L−1)+...

    An electrochemical cell is based on these two half-reactions: Ox: Sn(s)→Sn2 + (aq, 1.55 mol L−1)+ 2e−, E∘anode=−0.14(V) Red: ClO2(g,0.200 bar)+e−→ClO2-(aq, 1.75 mol L−1), E∘cathode=0.95(V) Part A Compute the cell potential at 25 ∘C. Express your answer to two decimal places and include the appropriate units.

  • A standard galvanic cell is constructed in which a Sn2+ | Sn half cell acts as...

    A standard galvanic cell is constructed in which a Sn2+ | Sn 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.) The anode reaction could be Mg -> Mg2+ + 2e-. Br2|Br- could be the other standard half cell. Sn is oxidized at the cathode. In the external circuit, electrons flow from the other compartment to the Sn2+|Sn compartment. As the cell runs,...

  • Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15...

    Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...

  • 3) A voltaic cell employs the following redox reaction: Sn2+ (aq) + Mn (s) →Sn (s)...

    3) A voltaic cell employs the following redox reaction: Sn2+ (aq) + Mn (s) →Sn (s) + Mn2+ (aq) a) Make a sketch of the cell. Label the cathode, anode, Sn2+, Mn, Sn, Mn?, and salt bridge. Indicate the direction of electron flow and the direction of ion flow from the salt bridge. b) Use line notation to represent the cell. c) What is the cell potential at 25°C when [Sn?] is 0.002 M and [Mn2+] is 0.050 M?

  • 5-Consider the half reactions belovw (1) Sn2+(aq) + 2e-→ Sn"(s) (II) Sn(aq) + 2eSn2 (s) (III)...

    5-Consider the half reactions belovw (1) Sn2+(aq) + 2e-→ Sn"(s) (II) Sn(aq) + 2eSn2 (s) (III) Cr (aq)3e-Cr (s) (IV) Cr"(aq) + 1e-→ Cr2+(s) E" =-0.14 E° = +0.15 V Eo -0.74 В" -0.41V Answer the following: ()If you dip a Cr rod (i.e. Cr (s)) in a tin solution (i.e. Sn2 (aq)), would any redox procces happen? (Yes/NO). If Yes, (a) what happens on the surface of Cr rod? (b) indicate which chemical species (e g. Sn (s)) is...

  • A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). a. If the...

    A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). a. If the concentration of Sn2+ in the cathode compartment is 1.50 M and the cell generates an emf of 0.22 V , what is the concentration of Pb2+ in the anode compartment? b. If the anode compartment contains [SO2−4]= 1.50 M in equilibrium with PbSO4(s), what is the Kspof PbSO4?

  • Question 8 (1 point) The standard potential of the cell Sn(s) Sn2(aq) || Cl(aq)| AgCl(s) |...

    Question 8 (1 point) The standard potential of the cell Sn(s) Sn2(aq) || Cl(aq)| AgCl(s) | Ag(s) is +0,36 V at 25°C. If the standard reduction potential of the AgCl|Ag Cl-couple is 0.22 V, calculate the standard reduction potential of the Sn? Isn couple. 0 -0.14 V +0.36 V -0.07 V +0.14 V +0.58 V

  • Co (s) | Co2+ (aq) || Au3+ (aq) | Au (s) Q3\ For the previous cell,...

    Co (s) | Co2+ (aq) || Au3+ (aq) | Au (s) Q3\ For the previous cell, determine the concentration of the cobalt ion when a cell voltage of 1.76 V is obtained using a 0.761 M gold (III) nitrate solution.   Q4\ Calculate the free energy for the nonstandard cell in the previous problem. Show all work. Be mindful of signs, sig figs, and units Q5\ Consider a galvanic cell consisting of the following two redox couples: Sn2+ (aq, 0.010 M)...

  • In the following cell, A is a standard Sn2+Sn electrode connected to a standard hydrogen electrode....

    In the following cell, A is a standard Sn2+Sn electrode connected to a standard hydrogen electrode. If the voltmeter reading is -0.14 V, match each electrode with its correct name. Given: Standard reduction potential of the Ht/H2 and Sn2+/Sn couples are 0.00 and -0.14 V, respectively. Hy (9) standard hydrogen electrode 1. anode Sn2+ Sn electrode 2. cathode

  • Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and...

    Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and the cathode half-reaction is Sn2+(aq) + 2 e– → Sn(s). What is the concentration of Sn2+ if Zn2+ is 2.5 × 10−3 M and the cell emf is 0.660 V? The standard reduction potentials are given below Zn+2(aq) + 2 e− → Zn(s)    E∘red == −0.76 V Sn2+(aq) + 2 e– → Sn(s)   E∘red  −0.136 V

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT