1) Which if the following will be investigated as part of this experiment? (choo

Question

1) Which if the following will be investigated as part of this experiment? (choose all that apply)

- Cell potential of simple electrochemical cells.

- Cell potential between cells with different concentrations of copper ions to determine a solubility product.

- Cell potential of an electrochemical cell with non-standard concentrations.

- Cell potential between different cells and the standard hydrogen electrode.

2) Look in the appendix in your book at the standard reduction potential table. Which of the following has the highest reduction potential? Zn2+, Pb2+, Ag+, Cl2, Zn, Pb, Ag, Cl-

- Ag+

- Zn

- Zn2+

- Pb2+

- Cl-

- Ag

- Cl2

- Pb

3) Look in the appendix in your book at the standard reduction potential table. Which of the following has the highest oxidation potential? Zn2+, Pb2+, Ag+, Cl2, Zn, Pb, Ag, Cl-

- Pb2+

- Zn2+

- Pb

- Ag

- Ag+

- Zn

- Cl2

- Cl-

4) How will the cell potential between solutions of 0.05M Zn2+ and 0.05M Cu2+ compare to that between 0.12M Zn2+ and 0.12M Cu2+

- will be the same

- will be smaller

- will be greater

- depends on strength of copper and zinc ions

-

Explanation / Answer

1) Here you did not give the experiment.

2) highest reduction potential has Cl2

- Ag+ -------- + 0.80 V

- Zn2+ ------- - 0.76 V

- Pb2+   -------- - 0.13 V

- Cl2 ----------   + 1.36 V

3) highest oxidation potential has Zn

- Pb ------- + 0.13 V

- Ag   -------- - 0.80 V

- Zn   ------- + 0.76 V

- Cl- -------- - 1.36 V

4) - depends on strength of copper and zinc ions

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