[Under Construction]

 

 

Review Chapter 21

1.    Draw a diagram of figure 21-7  and label the following:

        (anode, cathode, salt bridge, terminals, + & -, Zn & Cu rods, Zn & Cu solutions, oxidation & reduction sites, conductor)

 

 

 

 

 

 

 

 

a.    List the 2 half reactions and the net reaction of the above diagram.

        oxidation:

        reduction:

        overall:

3.  What is the purpose of the salt bridge?

4.    Draw a diagram of an Aqueous Sodium Chloride electrolytic cell (fig 21-21 for clues on how to draw) and label the following:

        (anode, cathode, terminals, + & -, oxidation & reduction sites, conductor)

 

 

 

 

    a.    List the 2 half reactions and the net reaction of the above diagram.

            oxidation:

            reduction:

            overall:

    b.    Label what is being produced at each terminal.

5.    What type voltaic cell uses KOH as its electrolyte paste?

6.    What contributions did the following scientists make to the development of the battery.

    Galvani

    Volta

7.    What kind of battery does a hydrogen car use.  Why does it last longer than a conventional battery?

 

8.    What is electroplating and what are two commercial uses?

9.    Define the following:

    a.    voltaic cell

    b.    electrolytic cell

    c.    half cell

    d.    electrochemical cell

    e.    volts

    f.    cathode

    g.    anode

    h.    oxidation

    i.    reduction

10.    What are standard conditions for measuring cell reactions?

11.    What is the cell potential and how is it measured?

12.    What is the difference between a wet and dry cell?

13.    Interpret the chart on page 693 and do the following problems.

   pg 712 #2

   pg 712 #3

    pg694 practice problem

    pg695 practice problems 1&2

 

 

Last modified: May 21, 2004