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Pacemakers Implanted in the Chests of Patients with Certain Heart

Question 8

Multiple Choice

Pacemakers implanted in the chests of patients with certain heart conditions are powered by a lithium/iodine PVP battery, where PVP represents polyvinylpyridine. The cell reaction and standard cell potential are given below. The standard reduction potential for Li/Li is 3.05 V. What species is oxidized in this reaction? Pacemakers implanted in the chests of patients with certain heart conditions are powered by a lithium/iodine PVP battery, where PVP represents polyvinylpyridine. The cell reaction and standard cell potential are given below. The standard reduction potential for Li/Li<font face= symbol ></font> is <font face= symbol ></font>3.05 V. What species is oxidized in this reaction? 3.59 V A) Li B) I<sub>2</sub> C) I<sub>2</sub>:PVP D) PVP E) LiI 3.59 V


A) Li
B) I2
C) I2:PVP
D) PVP
E) LiI

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