A standard galvanic cell is constructed in which a Co 2+ | Co half cell acts as
ID: 574693 • Letter: A
Question
A standard galvanic cell is constructed in which a Co2+ | Co 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.
As the cell runs, anions will migrate from the Co2+|Co compartment to the other compartment.
The cathode reaction is Co -> Co2+ + 2e-
The cathode reaction is Co2+ + 2e- -> Co
Br2|Br- could be the other standard half cell.
A standard galvanic cell is constructed with Ni2+|Ni and Fe3+|Fe2+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 Ni2+|Ni compartment.
As the cell runs, anions will migrate from the Ni2+|Ni compartment to the Fe3+|Fe2+ compartment.
Fe3+ is reduced at the cathode.
In the external circuit, electrons flow from the Ni2+|Ni compartment to the Fe3+|Fe2+ compartment.
Ni2+ is reduced at the cathode
A standard galvanic cell is constructed with Cl2 | Cl- and Co2+ | Cohalf 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 Cl2|Cl-compartment to the Co2+|Co compartment.
Co2+ is reduced at the cathode.
In the external circuit, electrons flow from the Cl2|Cl-compartment to the Co2+|Co compartment.
Cl2 is reduced at the cathode.
The anode compartment is the Co2+|Co compartment.
Explanation / Answer
1) Br2|Br- could be the other standard half cell.
2) As the cell runs, anions will migrate from the Ni2+|Ni compartment to the Fe3+|Fe2+ compartment.
Fe3+ is reduced at the cathode.
3) In the external circuit, electrons flow from the Cl2|Cl-compartment to the Co2+|Co compartment.
Cl2 is reduced at the cathode.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.