HORT 120 Lecture 2: hort Lec 2

Calculate E for the following electrochemical cell at 25°C, Cu | Cu2+ (0.100 M) || Zn2+ (0.0750 M) | Zn if E° (Cu2+) = +0.339 V and E° (Zn2+) = −0.762 V. (R = 8.31 J/K⋠mol, F = 96480 C/mol e− )

a. −1.105 V

b. −0.919 V

c. −0.486 V

d. −0.259 V

e. +0.486 V

The potential difference across the 10 resistor is

A) 30 V

B) 20 V

C) 15 V

D) 10 V

E) 5 v