A standard galvanic cell is constructed with Fe 2+ | Fe and Mg 2+ | Mg 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.)
Fe 2+ is reduced at the cathode.
Mg 2+ is reduced at the cathode.
The cathode compartment is the Fe 2+ |Fe compartment.
As the cell runs, anions will migrate from the Fe 2+ |Fe compartment to the Mg 2+ |Mg compartment.
In the external circuit, electrons flow from the Fe 2+ |Fe compartment to the Mg 2+ |Mg compartment.
A standard galvanic cell is constructed with Fe2+ | Fe and Mg+Mg 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.) Fez-is reduced at the cathode Mg is reduced at the cathode. The cathode compartment is the Fe Fe compartment. As the cell runs, anions will migrate from the Fe2+ Fe compartment to the Mg2+Mg compartment. In the extermal circuit, electrons flow from the Fe2jFe compartment to the Mg2*jMg compartment.
Solution
Fe 2+ is reduced at the cathode.
The cathode compartment is the Fe 2+ |Fe compartment.
As the cell runs, anions will migrate from the Fe 2+ |Fe compartment to the Mg 2+ |Mg compartment.
Mg(s) -----------> Mg^2+ (aq) + 2e^-Â Â Â Â oxidation half reaction
Fe^2+ (aq) + 2e^- -------. Fe(s)Â Â Â Â Â Â Â Â Â Â Â reduction half reaction
-------------------------------------------------------------------
mg(s) + Fe^2+ (aq) ----------> Mg^2+ (aq) + Fe(s)Â Â Â Â Â overall cell reaction
In the external circuit, electrons flow from the Mg 2+ |Mg compartment to the Fe 2+ |Fe compartment.
.
Measures of Dispersion and Variability: Range, QD, AD and SD
A standard galvanic cell is constructed with Fe2+ - Fe and Mg2+ - Mg h.docx
1. A standard galvanic cell is constructed with Fe 2+ | Fe and Mg 2+ | Mg 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.)
Fe 2+
is reduced at the cathode.
Mg 2+
is reduced at the cathode.
The cathode compartment is the Fe 2+
|Fe compartment.
As the cell runs, anions will migrate from the Fe 2+
|Fe compartment to the Mg 2+
|Mg
compartment.
In the external circuit, electrons flow from the Fe 2+
|Fe compartment to the Mg 2+
|Mg
compartment.
A standard galvanic cell is constructed with Fe2+ | Fe and Mg+Mg 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.) Fez-is reduced at the cathode Mg is
reduced at the cathode. The cathode compartment is the Fe Fe compartment. As the cell runs,
anions will migrate from the Fe2+ Fe compartment to the Mg2+Mg compartment. In the
extermal circuit, electrons flow from the Fe2jFe compartment to the Mg2*jMg compartment.
Solution
Fe 2+
is reduced at the cathode.
The cathode compartment is the Fe 2+
|Fe compartment.
As the cell runs, anions will migrate from the Fe 2+
|Fe compartment to the Mg 2+
|Mg
compartment.
Mg(s) -----------> Mg^2+ (aq) + 2e^-Â Â Â Â oxidation half reaction
2. Fe^2+ (aq) + 2e^- -------. Fe(s)Â Â Â Â Â Â Â Â Â Â Â reduction half reaction
-------------------------------------------------------------------
mg(s) + Fe^2+ (aq) ----------> Mg^2+ (aq) + Fe(s)Â Â Â Â Â overall cell reaction
In the external circuit, electrons flow from the Mg 2+
|Mg compartment to the Fe 2+
|Fe
compartment.
