In this lab you will construct several electrochemical cells...

In this lab you will construct several electrochemical cells where both half-cells contain a copper electrode in a copper (II) solution. What standard cell potential (Eocell) would be expected for a voltaic cell comprised only of copper? Answer Choices: 0.34 V 0.00 V -0.34 V 0.68 V 0.0592 V

A voltaic cell is constructed that uses the following halfcell reactions: $$ \begin{aligned} \mathrm{Cu}^{+}(a q)+\mathrm{e}^{-} & \longrightarrow \mathrm{Cu}(s) \\ \mathrm{I}_{2}(s)+2 \mathrm{e}^{-} \longrightarrow 2 \mathrm{I}^{-}(a q) \end{aligned} $$ The cell is operated at $298 \mathrm{~K}$ with $\left[\mathrm{Cu}^{+}\right]=0.25 \mathrm{M}$ and $\left[\mathrm{I}^{-}\right]=3.5$ M. (a) Determine $E$ for the cell at these concentrations. (b) Which electrode is the anode of the cell? (c) Is the answer to part (b) the same as it would be if the cell were operated under standard conditions? (d) If $\left[\mathrm{Cu}^{+}\right]$ was equal to $0.15 \mathrm{M}$, at $\mathrm{what}$ concentration of $\mathrm{I}^{-}$ would the cell have zero potential?

Question

In this lab you will construct several electrochemical cells where both half-cells contain a copper electrode in a copper (II) solution. What standard cell potential (Eocell) would be expected for a voltaic cell comprised only of copper? Answer Choices: 0.34 V 0.00 V -0.34 V 0.68 V 0.0592 V

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