Estimate the cell potential of a Daniel cell having 1.0M and originally having 1.0M…

CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

Estimate the cell potential of a Daniel cell having 1.0M

\text{Zn}^{2+}

and originally having 1.0M

\text{Cu}^{2+}

after sufficient

\text{NH}_3

has been added to the cathode compartment to make

\text{NH}_3

concentration 2.0M at equilibrium. Given

K_f

for

[\text{Cu}(\text{NH}_3)_4]^{2+} = 1 \times 10^{12}

E^\circ

for the reaction,

\text{Zn} + \text{Cu}^{2+} \longrightarrow \text{Zn}^{2+} + \text{Cu}

is 1.1V. (Take

\frac{2.303\,\text{RT}}{\text{F}} = 0.06

\log 6.25 = 0.8

) Respond as

10 \times

your answer.