Write a balanced redox reaction for the following electrochemical cell: Pt | Cu* (aq); Cu²+ (aq) || Fe3+ (aq) | Fe What is the correct balanced reaction for the cell?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Problem Statement:**

Write a balanced redox reaction for the following electrochemical cell:

\[ \text{Pt} \mid \text{Cu}^+(\text{aq}); \, \text{Cu}^{2+}(\text{aq}) \parallel \text{Fe}^{3+}(\text{aq}) \mid \text{Fe} \]

**Question:**

What is the correct balanced reaction for the cell?

---

**Explanation:**

This is an electrochemical cell consisting of two half-cells: one involving copper and the other iron. The platinum (Pt) serves as an inert electrode for the copper reactions, which involve the interconversion between Cu\(^+\) and Cu\(^{2+}\) ions, while iron involves the conversion between Fe\(^{3+}\) ions and solid iron.

In a typical balanced redox reaction, electrons are transferred from the reducing agent (which is oxidized) to the oxidizing agent (which is reduced). To find the balanced reaction, one must consider the stoichiometry of the electron transfer between the copper and iron species.
Transcribed Image Text:**Problem Statement:** Write a balanced redox reaction for the following electrochemical cell: \[ \text{Pt} \mid \text{Cu}^+(\text{aq}); \, \text{Cu}^{2+}(\text{aq}) \parallel \text{Fe}^{3+}(\text{aq}) \mid \text{Fe} \] **Question:** What is the correct balanced reaction for the cell? --- **Explanation:** This is an electrochemical cell consisting of two half-cells: one involving copper and the other iron. The platinum (Pt) serves as an inert electrode for the copper reactions, which involve the interconversion between Cu\(^+\) and Cu\(^{2+}\) ions, while iron involves the conversion between Fe\(^{3+}\) ions and solid iron. In a typical balanced redox reaction, electrons are transferred from the reducing agent (which is oxidized) to the oxidizing agent (which is reduced). To find the balanced reaction, one must consider the stoichiometry of the electron transfer between the copper and iron species.
The image shows a series of chemical reactions with options for selecting the correct balanced equation. Each option includes a combination of copper ions (Cu⁺ or Cu²⁺) and iron ions (Fe³⁺ or Fe(s)).

1. **Option 1:**
   - Reactants: 3 Cu⁺ + Fe³⁺
   - Products: 3 Cu²⁺ + Fe(s)

2. **Option 2:**
   - Reactants: 3 Cu²⁺ + Fe(s)
   - Products: 3 Cu⁺ + Fe³⁺

3. **Option 3:**
   - Reactants: 3 Cu²⁺ + Fe³⁺
   - Products: 3 Cu⁺ + Fe(s)

4. **Option 4:**
   - Reactants: Cu²⁺ + Fe(s)
   - Products: Cu⁺ + Fe³⁺

5. **Option 5:**
   - Reactants: Cu⁺ + Fe³⁺
   - Products: Cu²⁺ + Fe(s)

Each option is preceded by a radio button indicating it is likely intended to be selected. This image is likely part of a question asking students to identify the correct equation for a redox reaction.
Transcribed Image Text:The image shows a series of chemical reactions with options for selecting the correct balanced equation. Each option includes a combination of copper ions (Cu⁺ or Cu²⁺) and iron ions (Fe³⁺ or Fe(s)). 1. **Option 1:** - Reactants: 3 Cu⁺ + Fe³⁺ - Products: 3 Cu²⁺ + Fe(s) 2. **Option 2:** - Reactants: 3 Cu²⁺ + Fe(s) - Products: 3 Cu⁺ + Fe³⁺ 3. **Option 3:** - Reactants: 3 Cu²⁺ + Fe³⁺ - Products: 3 Cu⁺ + Fe(s) 4. **Option 4:** - Reactants: Cu²⁺ + Fe(s) - Products: Cu⁺ + Fe³⁺ 5. **Option 5:** - Reactants: Cu⁺ + Fe³⁺ - Products: Cu²⁺ + Fe(s) Each option is preceded by a radio button indicating it is likely intended to be selected. This image is likely part of a question asking students to identify the correct equation for a redox reaction.
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