Quiz: Electrode Potential

1. The total potential is the sum of the potentials produced by the reactions
a. in the solution
b. at the salt bridge
c. at the two electrodes
2. Another name for electrical potential is
a. electrical force
b. electromotive force
c. electrolytic force
3. The standard electrode for hydrogen is arbitrarily assigned a potential of
a. 1 V
b. 0 V
c. –1 V
4. Standard electrode potentials are generally written as
a. reduction half reactions
b. oxidation half reactions
c. double replacement reactions
5. The reference primary standard electrode is the __________ electrode.
a. copper
b. mercury
c. hydrogen
6. The electromotive force (EMF) of a cell equals
a. EMFoxidation − EMFreduction
b. EMFoxidation × EMFreduction
c. EMFoxidation + EMFreduction
7. When a reduction half reaction is rewritten as an oxidation half reaction, the reaction must be __________ and the sign of the voltage __________.
a. reversed, kept positive
b. reversed, reversed
c. kept as written in table, reversed

The following information is to be used to answer questions 8–10.

Consider a voltaic cell based on the redox reaction:

equation

With the following reduction potentials:

equation

8. Which species is oxidized?
a. Hg2+
b. Hg
c. Cu
9. What is the EMF of the cell?
a. 0.34 V
b. 0.92 V
c. 0.58 V
10. Which half reaction must be reversed from the data given?
a. the reduction half cell
b. the oxidation half cell
c. neither half cell

Cite this article

Ask Cliff

More Study Help