Multiple Choice
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous.
H2O2(aq) + 2H+(aq) + 2e-
2H2O(l) ;E° = 1.77 V
Fe3+ (aq) + e-
Fe2+(aq) ;E° = 0.77 V
Overall reaction:
2Fe3+(aq) + 2H2O(l) H2O2(aq) + 2H+(aq) + 2Fe2+(aq)
A) E°cell = -1.00 V,nonspontaneous
B) E°cell = -1.00 V,spontaneous
C) E°cell = 1.00 V,nonspontaneous
D) E°cell = 1.00 V,spontaneous
E) E°cell = -0.23 V,nonspontaneous
Correct Answer:

Verified
Correct Answer:
Verified
Q3: Examine the following half-reactions and select the
Q7: Examine the following half-reactions and select the
Q11: Consider the reaction in the lead-acid
Q13: Calculate E°<sub>cell</sub> and indicate whether the
Q31: In one or two short sentences each,
Q40: A secondary cell (battery) can operate either
Q69: A voltaic cell consists of a Hg/Hg<sub>2</sub><sup>2+</sup>
Q92: A battery is considered "dead" when<br>A)Q <
Q94: Which, if any, of the following metals
Q100: Which one of the following is not