Electrochemistry Review
Quiz
•
Chemistry
•
11th - 12th Grade
•
Hard
+7
Standards-aligned
Jeremiah Walsh
Used 29+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Given the following cell:
Zn | Zn2+ || Sn2+ | Sn
in order to increase the voltage, one could
increase [Zn2+].
increase [Sn2+].
use more Zn.
use more Sn.
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which one of the following reactions will not occur spontaneously?
Mg(s) + 2Ag+(aq) ⟶ Mg2+(aq) + 2Ag(s)
Hg2+(aq) + Zn(s) ⟶ Hg(l) + Zn2+(aq)
Cu2+(aq) + Zn(s) ⟶ Cu(s)+ Zn2+(aq)
2Ag(s) + Ni2+(aq) ⟶ 2Ag+(aq) + Ni(s)
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the oxidation number of manganese is MnO4-
+2
+4
+7
+8
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
When solid iron is oxidized to Fe2+(aq) by CuNO3 at 25°C, the standard cell potential is 0.927 V. What is ΔG°?
-89 kJ
-179 kJ
+179 kJ
+89 kJ
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Mg(s) + 2H+(aq) ⟶ Mg2+(aq) + H2(g)
The standard potential for the reaction above is 2.357 V.
What is true of the cell potential when [H+] = 2.0 M, [Mg2+] = 0.0050 M, and PH2 = 0.40 atm?
E < 2.357 V
E = 2.357 V
E > 2.357 V
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The standard reduction potential for
Mg2+(aq) + 2e- ⟶ Mg(s)
is -2.37V. What is the reduction potential for
2Mg2+(aq) + 4e- ⟶ 2Mg(s)?
-4.74 V
-2.37 V
+2.37 V
+4.74 V
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the voltage of the electrochemical cell when the reaction below reaches equilibrium?
Mg(s) + 2Fe3+(aq) ⟶ Mg2+(aq) + 2Fe2+(aq)
+3.14 V
+1.60 V
+0.83 V
0.00 V
Tags
NGSS.HS-PS3-1
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