Potential difference.

Exercises
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1) Using the table above predict if a reaction will occur and write the reaction when:

a) hydrogen gas is bubbled through a solution of copper nitrate.
b) magnesium metal is placed in calcium nitrate solution.
c) lithium metal is placed in water
d) aluminium metal is placed in an acid solution.
e) an iron nail is placed in magnesium nitrate solution.

Solution

2) Using the table above calculate the emf of the cell created when the following half cells are connected.

a) and

b) and

c) and

d) and

e) and

Solution

3) In question 2) above indicate the reaction occuring at the anode and at the cathode. Indicate the direction of electron flow.

Solution
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