Voltaic Cell Regents

Quiz
•
Chemistry
•
12th Grade
•
Hard
+1
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ni2+ + 2e à Ni Eo = -0,25 V
Pb2+ + 2e à Pb Eo = -0,13 V
The standard potential of a voltaic cell consisting of Ni and Pb electrodes is…
-0,38 V
-0,03 V
+0,12 V
+0,25 V
+0,38 V
Tags
NGSS.HS-PS3-1
NGSS.HS-PS3-5
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Mg2+ (aq) + 2e à Mg (s) Eo = -2,37 volt
Sn2+ (aq) + 2e à Sn(s) Eo = -0,14 volt
With these data, voltaic cells are arranged. Which of the following statements is true…
Mg metal as cathode
Reaction: Sn + Mg2+ à Mg + Sn2+ is spontaneous
The resulting cell potential is +2.57 volts
Sn metals acts as a positive electrode
Soluble Sn eelectrode
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
From the following standard electrode potential data
Cu2+ + 2e à Cu Eo = +0,34 volt
Ag+ + e à Ag Eo = +0,80 volt
Then the Cu + 2Ag reaction has a cell potential...
0,06 v
0,46 v
0,57 v
1,14 v
1,26 v
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Knowing :
Cu2+ + 2e- à Cu Eo = +0,34 volt
Mg2+ + 2e- à Mg Eo + -2,34 volt
Zn2+ + 2e- à Zn Eo = -0,76 volt
Al3+ + 3e- à Al Eo = -1,66 volt
Fe2+ + 2e- à Fe Eo = -0,44 volt
The greatest value of cell potential is found in...
Cu |Cu2+ || Al3+ |Al
Al | Al3+ || Zn2+ |Zn
Mg |Mg2+ || Cu3+ |Cu
Zn |Zn2+ || Fe2+ |Fe
Fe |Fe3+ || Cu2+ |Cu
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
If the metal reduction potential is known as follows: X2+ + 2e- à X Eo = +0,47 volt
Y2+ + 2e- à Y Eo = -0,76 volt
Z2+ + 2e- à Z Eo = -0,83 volt
The arrangement of the metals X, Y, and Z in the voltaic series in order of increasing reducing strength...
X-Y-Z
Y-X-Z
Z-Y-X
X-Z-Y
Y-Z-X
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Car batteries have Pb and PbO2 electrodes. When the battery produces an electric current, a change occurs....
Pb becomes PbSO4, while PbO2 remains
Pb becomes PbO and PbO2 becomes Pb3O4
Pb and PbO2 both become PbSO4
Pb become Pb3O4, and PbO2 becomes PbO
Pb and PbO both become PbO
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A simple battery can be made to dissolve 2 tablespoons of table salt per 200 cc of water, this solution is used as an electrolyte, while zinc and copper are used as electrodes. The most appropriate reason this cell is called an air zinc battery is….
A copper plate is used as a cathode so that it is positively charged
The zinc plate is used as the anode so it is negatively charged
After a while of use, a black layer forms on the zinc electrode
Oxygen from the air reacts with zinc, while the copper electrode functions to drain electrons
The electrolyte of table salt reacts with air so that the zinc electrode forms a black layer
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