24. Given the following electrode (reduction) potentials: Fe3+ + e --> Fe2*; E° = 0.77 V Cu2* + 2e¯ --> Cu; E° = 0.34 V What is the overall cell reaction in a Voltaic cell represented by the following cell notation? Cu(s) | Cu²*(aq)|| Fe3*, Fe²*(aq) | C(s). (A) Cu(s) + 2Fe²*(aq) --> Cu2*(aq) + 2Fe3*(aq); (B) Cu(s) + 2Fe³*(aq) Cu²*(aq) + 2FE²*(aq); --> (C) 2Fe²*(aq) + Cu²*(aq) --> 2FE3*(aq) + Cu(s); (D) 3Cu(s) + 2FE3*(ag) --> 2Fe(s) + 3Cu²*(aq);

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**Electrode Reduction Potentials Given:**

- \( \text{Fe}^{3+} + \text{e}^- \rightarrow \text{Fe}^{2+}; \, E^\circ = 0.77 \, \text{V} \)
- \( \text{Cu}^{2+} + 2\text{e}^- \rightarrow \text{Cu}; \, E^\circ = 0.34 \, \text{V} \)

**Question:**

What is the overall cell reaction in a Voltaic cell represented by the following cell notation?

\[ \text{Cu(s)} \, | \, \text{Cu}^{2+}(\text{aq}) \, || \, \text{Fe}^{3+}, \, \text{Fe}^{2+}(\text{aq}) \, | \, \text{C(s)}. \]

**Options:**

(A) \( \text{Cu(s)} + 2\text{Fe}^{2+}(\text{aq}) \rightarrow \text{Cu}^{2+}(\text{aq}) + 2\text{Fe}^{3+}(\text{aq}); \)

(B) \( \text{Cu(s)} + 2\text{Fe}^{3+}(\text{aq}) \rightarrow \text{Cu}^{2+}(\text{aq}) + 2\text{Fe}^{2+}(\text{aq}); \)

(C) \( 2\text{Fe}^{2+}(\text{aq}) + \text{Cu}^{2+}(\text{aq}) \rightarrow 2\text{Fe}^{3+}(\text{aq}) + \text{Cu(s)}; \)

(D) \( 3\text{Cu(s)} + 2\text{Fe}^{3+}(\text{aq}) \rightarrow 2\text{Fe(s)} + 3\text{Cu}^{2+}(\text{aq}); \)
Transcribed Image Text:**Electrode Reduction Potentials Given:** - \( \text{Fe}^{3+} + \text{e}^- \rightarrow \text{Fe}^{2+}; \, E^\circ = 0.77 \, \text{V} \) - \( \text{Cu}^{2+} + 2\text{e}^- \rightarrow \text{Cu}; \, E^\circ = 0.34 \, \text{V} \) **Question:** What is the overall cell reaction in a Voltaic cell represented by the following cell notation? \[ \text{Cu(s)} \, | \, \text{Cu}^{2+}(\text{aq}) \, || \, \text{Fe}^{3+}, \, \text{Fe}^{2+}(\text{aq}) \, | \, \text{C(s)}. \] **Options:** (A) \( \text{Cu(s)} + 2\text{Fe}^{2+}(\text{aq}) \rightarrow \text{Cu}^{2+}(\text{aq}) + 2\text{Fe}^{3+}(\text{aq}); \) (B) \( \text{Cu(s)} + 2\text{Fe}^{3+}(\text{aq}) \rightarrow \text{Cu}^{2+}(\text{aq}) + 2\text{Fe}^{2+}(\text{aq}); \) (C) \( 2\text{Fe}^{2+}(\text{aq}) + \text{Cu}^{2+}(\text{aq}) \rightarrow 2\text{Fe}^{3+}(\text{aq}) + \text{Cu(s)}; \) (D) \( 3\text{Cu(s)} + 2\text{Fe}^{3+}(\text{aq}) \rightarrow 2\text{Fe(s)} + 3\text{Cu}^{2+}(\text{aq}); \)
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