33. A electrolytic cell similar to that shown in the figure above is constructed
ID: 1056722 • Letter: 3
Question
33.
A electrolytic cell similar to that shown in the figure above is constructed. The electronic device shown at the top of the figure is a power supply. One electrode compartment consists of a cadmium strip placed in a 1.0 M Cd(NO3)2 solution, and the other has a copper strip placed in a 1.0 M CuSO4 solution. The overall cell reaction is:
Cations migrate from the 1.0 M CuSO4 solution through the salt bridge to the 1.0 M Cd(NO3)2 solution.
Electrons flow from the copper electrode to the cadmium electrode through the power supply.
The copper electrode is the anode and the cadmium electrode is the cathode.
Anions migrate from the 1.0 M Cd(NO3)2 solution through the salt bridge to the 1.0 M CuSO4 solution.
Anions migrate from the 1.0 M CuSO4 solution through the salt bridge to the 1.0 M Cd(NO3)2 solution.
The cadmium electrode is positive and the copper electrode is negative.
Electrons flow from the cadmium electrode to the copper electrode through the power supply.
The copper electrode is positive and the cadmium electrode is negative.
Cations migrate from the 1.0 M Cd(NO3)2 solution through the salt bridge to the 1.0 M CuSO4 solution.
The cadmium electrode is the anode and the copper electrode is the cathode.
Explanation / Answer
a) anode half reaction : Cd (s) -------------------> Cd+2 (aq) + 2e-
cathode half reaction : Cu+2 (aq) + 2e- -------------> Cu (s)
b)
anode electode -----------------> Cd
cathode electode ----------------> Cu
anode electode sign = negaitve
cathode electode sign = positive
electrons will flow from anode to cathode
ions will flow from cathode to anode
c)
true statements
.Anions migrate from the 1.0 M CuSO4 solution through the salt bridge to the 1.0 M Cd(NO3)2 solution.
Electrons flow from the cadmium electrode to the copper electrode through the power supply.
The copper electrode is positive and the cadmium electrode is negative.
Cations migrate from the 1.0 M Cd(NO3)2 solution through the salt bridge to the 1.0 M CuSO4 solution.
The cadmium electrode is the anode and the copper electrode is the cathode.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.