Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment) :
0.10 M MnO4- 0.40 M Cr3+
0.20 M Mn2+ 0.30 M Cr2O72-
0.010 M H+ 0.010 M H+
The standard reduction potentials are as follows:
MnO4- + 8H+ + 5e- Mn2+ + 4H2O, = 1.51 V
Cr2O72- + 14H+ + 6e- 2Cr3+ + 7H2O, =1.33 V
-When current is allowed to flow,which species is reduced?
A) Cr2O72-
B) Cr3+
C) MnO4-
D) Mn2+
E) H+
Correct Answer:
Verified
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