10) . Use the principles that you learned in Part ii to calculate the standard reduction...

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Chemistry

10) . Use the principles that you learned in Part ii tocalculate the standard reduction potentials for each half-cell,given that the EÂ° for Cu2+ + 2e- ïƒ Cu (s) is 0.34 V.Note that EÂ°for a half-reaction is not dependent on the coefficients, providedof course that the reaction is balanced, i.e., EÂ° for Ag+ + e-ïƒ Ag(s) is the same as EÂ° for Ag+ + 2e-ïƒ 2 Ag (s)
Refers to Procedures Part III Step9
Data Table 1: DataMeasurements
Cu red
Pb red
Sn red
Zn red
Al red
Mg red
Cu black
0
-0.48
-0.49
-0.94
-0.37
-1.75
Pb black
0.49
0
-0.01
-0.49
-0.04
-1.30
Sn black
0.53
0.02
0
-0.48
-0.03
-1.24
Zn black
0.98
0.49
0.48
0
0.19
-0.78
Al black
0.58
0.03
0.04
-0.07
0
-0.94
Mg black
1.76
1.27
1.26
0.77
0.78
0
* Pb results are mostunreliable

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4.3 Ratings (916 Votes)

The Cu half cell is reference and what you measure is how much the potential of the other half cell is below the reference because these values are negative Measured emf EM2M ECu2Cu Thus EM2M measured emf ECu2Cu measured emf 034 V Now you may calculatebut I suppose your experimental procedure was each metal M in its half cell had the corresponding See Answer

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Data Table 1: DataMeasurements
	Cu red	Pb red	Sn red	Zn red	Al red	Mg red
Cu black	0	-0.48	-0.49	-0.94	-0.37	-1.75
Pb black	0.49	0	-0.01	-0.49	-0.04	-1.30
Sn black	0.53	0.02	0	-0.48	-0.03	-1.24
Zn black	0.98	0.49	0.48	0	0.19	-0.78
Al black	0.58	0.03	0.04	-0.07	0	-0.94
Mg black	1.76	1.27	1.26	0.77	0.78	0