---
title: "A student investigates the standard cell potential of an electrochemical cell involving iron and silver species. The standard reduction potentials for the relevant half-reactions at \\(298\\text{ K}\\) are shown in the table below.  | Half-reaction | \\(E^\\circ\\text{ (V)}\\) | |—|—| | \\(\\text{Fe}^{3+}\\text{(aq)} + \\text{e}^- \\rightarrow \\text{Fe}^{2+}\\text{(aq)}\\) | \\(+0.77\\) | | \\(\\text{Ag}^+\\text{(aq)} + \\text{e}^- \\rightarrow \\text{Ag(s)}\\) | \\(+0.80\\) |  Based on the data, what is the value of \\(E^\\circ_{\\text{cell}}\\) for the thermodynamically favored reaction between \\(\\text{Fe}^{2+}\\text{(aq)}\\) and \\(\\text{Ag}^+\\text{(aq)}\\) under standard conditions at \\(298\\text{ K}\\)?"
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url: "https://nerd-notes.com/ubq/119863/"
date_modified: "2026-08-21T08:16:30+00:00"
---

# A student investigates the standard cell potential of an electrochemical cell involving iron and silver species. The standard reduction potentials for the relevant half-reactions at \(298\text{ K}\) are shown in the table below.

| Half-reaction | \(E^\circ\text{ (V)}\) |
|—|—|
| \(\text{Fe}^{3+}\text{(aq)} + \text{e}^- \rightarrow \text{Fe}^{2+}\text{(aq)}\) | \(+0.77\) |
| \(\text{Ag}^+\text{(aq)} + \text{e}^- \rightarrow \text{Ag(s)}\) | \(+0.80\) |

Based on the data, what is the value of \(E^\circ_{\text{cell}}\) for the thermodynamically favored reaction between \(\text{Fe}^{2+}\text{(aq)}\) and \(\text{Ag}^+\text{(aq)}\) under standard conditions at \(298\text{ K}\)?

A student investigates the standard cell potential of an electrochemical cell involving iron and silver species. The standard reduction potentials for the relevant half-reactions at \(298\text{ K}\) are shown in the table below.

| Half-reaction | \(E^\circ\text{ (V)}\) |
|---|---|
| \(\text{Fe}^{3+}\text{(aq)} + \text{e}^- \rightarrow \text{Fe}^{2+}\text{(aq)}\) | \(+0.77\) |
| \(\text{Ag}^+\text{(aq)} + \text{e}^- \rightarrow \text{Ag(s)}\) | \(+0.80\) |

Based on the data, what is the value of \(E^\circ_{\text{cell}}\) for the thermodynamically favored reaction between \(\text{Fe}^{2+}\text{(aq)}\) and \(\text{Ag}^+\text{(aq)}\) under standard conditions at \(298\text{ K}\)?

- **A.** \(-1.57\text{ V}\)
- **B.** \(-0.03\text{ V}\)
- **C.** \(+0.03\text{ V}\)
- **D.** \(+1.57\text{ V}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119863/*