MISSED THIS? Read Section 20.6 (Page). A voltaic cell employs the following redox reaction: 2 Fe³+ (aq) + 3 Mg (s) → 2 Fe (s) + 3 Mg²+ (aq) Calculate the cell potential at 25 °C under each of the following conditions. ▼ standard conditions Express your answer in units of volts. Ecell = Submit Part B Ecell = [Fe³+] = 2.5x10-3 M: [Mg²+] = 2.05 M Express your answer in units of volts. Submit [ΠΙ ΑΣΦ Part C Request Answer ΠΫΠΙ ΑΣΦ K Request Answer = 2.05 M [Mg²+] = 2.5x10-3 M [Fe³+] = Express your answer in units of volts. ? ? V V

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### Educational Content: Calculating Cell Potential in a Voltaic Cell

#### Overview

This exercise involves calculating the cell potential for a given voltaic cell reaction at 25 °C. The reaction used is:

\[ 2 \text{Fe}^{3+} (\text{aq}) + 3 \text{Mg} (\text{s}) \rightarrow 2 \text{Fe} (\text{s}) + 3 \text{Mg}^{2+} (\text{aq}) \]

You are required to calculate the cell potential under various conditions.

---

#### Part A: Standard Conditions

- **Problem**: Calculate the cell potential under standard conditions.
  
  In this setup, you'll compute the value of \(\text{E}_{\text{cell}}\) in volts. Use standard reduction potentials and the Nernst equation where needed to determine the potential.

---

#### Part B: Given Concentrations

- **Conditions**:
  - \([\text{Fe}^{3+}] = 2.5 \times 10^{-3} \, \text{M}\)
  - \([\text{Mg}^{2+}] = 2.05 \, \text{M}\)

- **Task**: Express the cell potential (\(\text{E}_{\text{cell}}\)) in volts with the given concentrations. 

  Use the Nernst equation to account for non-standard conditions, considering the activity of ions in solution.

---

#### Part C: Reversed Concentrations

- **Conditions**:
  - \([\text{Fe}^{3+}] = 2.05 \, \text{M}\)
  - \([\text{Mg}^{2+}] = 2.5 \times 10^{-3} \, \text{M}\)

- **Task**: Again, express \(\text{E}_{\text{cell}}\) in volts with these concentrations.

  The reversal in concentration compared to Part B will cause a change in the calculated cell potential. Apply the Nernst equation as required.

---

### Calculation Guidance

- **Nernst Equation**: Used to find cell potential under non-standard conditions:
  
  \[ \text{E}_{\text{cell}} = \text{E}^\circ_{\text{cell}} - \frac{RT}{nF} \ln Q \]

  Where:
  - \(\text{E}^\circ_{\
Transcribed Image Text:### Educational Content: Calculating Cell Potential in a Voltaic Cell #### Overview This exercise involves calculating the cell potential for a given voltaic cell reaction at 25 °C. The reaction used is: \[ 2 \text{Fe}^{3+} (\text{aq}) + 3 \text{Mg} (\text{s}) \rightarrow 2 \text{Fe} (\text{s}) + 3 \text{Mg}^{2+} (\text{aq}) \] You are required to calculate the cell potential under various conditions. --- #### Part A: Standard Conditions - **Problem**: Calculate the cell potential under standard conditions. In this setup, you'll compute the value of \(\text{E}_{\text{cell}}\) in volts. Use standard reduction potentials and the Nernst equation where needed to determine the potential. --- #### Part B: Given Concentrations - **Conditions**: - \([\text{Fe}^{3+}] = 2.5 \times 10^{-3} \, \text{M}\) - \([\text{Mg}^{2+}] = 2.05 \, \text{M}\) - **Task**: Express the cell potential (\(\text{E}_{\text{cell}}\)) in volts with the given concentrations. Use the Nernst equation to account for non-standard conditions, considering the activity of ions in solution. --- #### Part C: Reversed Concentrations - **Conditions**: - \([\text{Fe}^{3+}] = 2.05 \, \text{M}\) - \([\text{Mg}^{2+}] = 2.5 \times 10^{-3} \, \text{M}\) - **Task**: Again, express \(\text{E}_{\text{cell}}\) in volts with these concentrations. The reversal in concentration compared to Part B will cause a change in the calculated cell potential. Apply the Nernst equation as required. --- ### Calculation Guidance - **Nernst Equation**: Used to find cell potential under non-standard conditions: \[ \text{E}_{\text{cell}} = \text{E}^\circ_{\text{cell}} - \frac{RT}{nF} \ln Q \] Where: - \(\text{E}^\circ_{\
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