Refers to Procedures Part III Step 9 Data Table 1: Data Measurements Cu red Pb r

Question

                                                                                                                            

Refers to Procedures Part III Step 9

Data Table 1: Data Measurements

Cu red

Pb red

Sn red

Zn red

Al red

Mg red

Cu black

Pb black

Sn black

Zn black

Al black

Mg black

* Pb results are most unreliable

Which is the strongest oxidizing agent in the table?

B. Which is the strongest reducing agent in the table?

Data Table 1: Data Measurements

Cu red

Pb red

Sn red

Zn red

Al red

Mg red

Cu black

Pb black

Sn black

Zn black

Al black

Mg black

Explanation / Answer

A) we know that

oxidizing agent is the one which undergoes reduction

and

reducing agent is the one which undegoes oxidation

now

the one which lies on the top of the reduction potential table is the best reducing agent

and

the one which lies at the bottom of the reduction potential table is the best oxidzing agent

now

for the given elemens

the order is

1) Mg   Eo = -2.37

2) Al   Eo = - 1.66

3) Zn   Eo = -0.76

4) Sn   Eo = -0.13

5) Pb   Eo = -0.12

6) Cu   Eo = 0.34

So

Mg is the strongest reducing agent

and

Cu+2 is the strongest oxidizing agent

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