Connected connected to potential
to a red clip a black clip differe-
nce (mv)
Cu Mg 1031
Mg Cu -1082
Cu Sn 329
Sn Cu -261
Mg Sn -845
Sn Mg 765
- From the voltage data construct a partual activity series for the metals: Mg, Sn, and Cn
From highest activity series(most likely to be oxidized) to lowest metal on actigity series ( least likely to be oxidized)
Note
The voltmeter is wired sych that a pistive reading indicates the half- cell connected to the red clip is a site of reducation.
2.)Consider three hypothetical metals: “X”, “Y” and “Z”.
The following reactions proceed spontaneously in the direction as written under standard state conditions:
X(s) + Z2+ → X2+ + Z(s)
Z(s) + Y2+ → Z2+ + Y(s)
Complete each of the following statements.
If the metal Y is placed into a solution containing 1 M X2+ , a reaction will/will not occur (choose option)
Assume the metal Z will dissolve in 1 M HCl. This means the metal X will/ will not ( choose option) dissolve in 1 M HCl.
3.) Using a voltameter with alligator clips ( one black and one red). If the voltameter gives a negative voltage reading, which of the following is true?
A) the half- cell connected to the black clip is a site of oxidation
B) the half- cell connected to the black clip is the site of reduction
Sample Solution
