Use the References to access important values if needed for this question. A standard galvanic cell is constructed with Co2+ | Co and Cr³+ | Cr half cell compartments connected by a salt bridge. 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 Cr³+ | Cr compartment to the Co²+ | Co compartment. In the external circuit, electrons flow from the Cr³+ | Cr compartment to the Co2+ | Co compartment. Co2+ is reduced at the cathode. The anode compartment is the Co²+ | Co compartment. The anode compartment is the Cr³+ | Cr compartment. Submit Answer Retry Entire Group 9 more group attempts remaining

Use the References to access important values if needed for this question. A standard galvanic cell is constructed with Co2+ | Co and Cr³+ | Cr half cell compartments connected by a salt bridge. 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 Cr³+ | Cr compartment to the Co²+ | Co compartment. In the external circuit, electrons flow from the Cr³+ | Cr compartment to the Co2+ | Co compartment. Co2+ is reduced at the cathode. The anode compartment is the Co²+ | Co compartment. The anode compartment is the Cr³+ | Cr compartment. Submit Answer Retry Entire Group 9 more group attempts remaining

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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A voltaic cell consists of two half-cells. One of the half-cells contains a platinum electrode surroundedby chromium (III) and dichromate ions. The other half-cell contains a platinum electrode surrounded by bromate ions and liquid bromine. Assume that the cell reaction, which produces a positive voltage, involves both chromium (III) and bromate ions. The cell is at 25°C. Information for the bromate reduction half reaction is as follows: (a) Write the cell diagram notation(b) Calculate E° for the cell(c) Calculate the voltage of the cell when all ionic species except H+ are 0.1500M and the pH is at -0.30
Consider a voltaic cell comprised of Zn/Zn2+ at one electrode and Fe2*/Fe3+ at the other electrode at standard conditions. Electrons will flow from the [ Select ] , which is the [ Select ] , and the cations in the salt bridge will flow towards the [Select ] . You may find a list of standard reduction potentials useful.
Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment): V Pt 0.10 M MnO4 0.40 М Cr3+ 0.20 M Mn2+ 0.30 M Cr,0,2- 0.010 M H* 0.010 MH* The standard reduction potentials are as follows: MnO, + 8H* + 5e → Mn2+ + 4H,O, ɛ° = 1.51 V Cr,0,2- + 14H* + 6e 2Cr** + 7H2O, ɛ° = 1.33 V When current is allowed to flow, which species is oxidized? O Cr,0,²- Cr³+ MnO4 Mn2+ O H*
A standard galvanic cell is constructed in which a Pb2+ | Pb 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 compartment could be I2|I-. The cathode reaction is Pb2+ + 2e- -> Pb Pb is oxidized at the cathode. Pb2+ is reduced at the cathode. In the external circuit, electrons flow from the other compartment to the Pb2+|Pb compartment.
A standard galvanic cell is constructed with Al3+|Al and I2|I¯ half cell compartments connected by a salt bridge. 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 Al3+|Al compartment to the I2|I compartment. I is oxidized at the anode. In the external circuit, electrons flow from the Al3+|Al compartment to the I2|I compartment. The cathode compartment is the I2|I" compartment. The cathode compartment is the Al3+|Al compartment.
A standard galvanic cell is constructed with Sn²+ | Sn and Al³+ | Al half cell compartments connected by a salt bridge. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) The cathode compartment is the Sn²+ | Sn compartment. In the external circuit, electrons flow from the Sn²+ | Sn compartment to the Al³+ | Al compartment. As the cell runs, anions will migrate from the Sn²+ | Sn compartment to the A1³+ | Al 2+ compartment. Sn²+ is reduced at the cathode. The anode compartment is the Sn²+ | Sn compartment.
A standard galvanic cell is constructed in which a H* | H, 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.) Zn2"Zn could be the other standard half cell. The anode reaction could be Zn -> Zn²= + 2e The cathode reaction is H2 -> 2H* + 2e¯ II could be the other standard half cell. In the external circuit, electrons flow from the other compartment to the H"|H2 compartment.
A standard galvanic cell is constructed in which a Cd²+ | Cd 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.) O Cd is oxidized at the cathode. Zn2"|Zn could be the other standard half cell. Hg-"Hg could be the other standard half cell. As the cell runs, anions will migrate from the other compartment to the Cd-"|Cd compartment. In the external circuit, electrons flow from the other compartment to the Cd²"|Cd compartment.
A standard galvanic cell is constructed with Mg2+ | Mg and Br₂ Br half cell compartments connected by a salt bridge. Which of the following statements Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) O The cathode compartment is the Br₂ | Br compartment. The anode compartment is the Br₂ Br compartment. In the external circuit, electrons flow from the Mg2+ | Mg compartment to the Br₂ | Br compartment. As the cell runs, anions will migrate from the Mg2+ | Mg compartment to the Br₂ | Br compartment. O Mg2+ is reduced at the cathode.
Consider the following galvanic cells. Diagram I Au- 1.0 M Au³+ chemPad XX 80 1.16 80 (b) balanced cell equation II chemPad X V For each galvanic cell, give the balanced cell reaction and determine &. Standard reduction potentials are found in the Standard Reduction Potentials table. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) (a) balanced cell equation I 1.4 1.0 M Cu+ 1.0 M Cu²+ Au(s)+3Cu²+(aq) ⇒ Au³+(aq)+3Cu+(aq) |Au(s)+3Cu^2+(aq)Au^3+(aq)+3Cu^+(aq) Your answer indicates a reaction progressing in an inconsistent direction. -Pt Greek V i Diagram II Greek Cd- 1.0 M Cd2+ XX Enter a number. Cd(s)+2VO₂²+ (aq)+4H*(aq) ← Cd²+(aq)+2VO²+ (aq)+2H₂O(l) Cd(s)+2VO_2^2+(aq)+4H^+(aq)<--Cd^2+(aq)+2VO^2+(aq)+2H_2O(l) Your answer indicates a reaction progressing in an inconsistent direction. Help Help -Pt 1.0 M VO₂ 1.0 MH+ 1.0 M VO²+ i
t/takeCovalentActivity.do?locator-assignment-take [Review Topics] [References] Use the References to access important values if needed for this question. A standard galvanic cell is constructed in which a Pb2+ | Pb 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.) Fe3+|Fe2+ could be the other standard half cell. Mn2+1Mn could be the other standard half cell. OPb is oxidized at the cathode. 0 The cathode reaction is Pb2+ + 2e -> Pb As the cell runs, anions will migrate from the Pb2+|Pb compartment to the other compartment. Submit Answer Retry Entire Group 7 more group attempts remaining
A standard galvanic cell is constructed in which a Cd*| Cd 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.) Hg?" Hg could be the other standard half cell. Mg"|Mg could be the other standard half cell. U As the cell runs, anions will migrate from the Cd2"Cd compartment to the other compartment. The cathode reaction is Cd2+ + 2e -> Cd U The cathode reaction is Cd -> Cd2* + 2e