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Chapter 19: Problem 108

Comment on whether \(\mathrm{F}_{2}\) will become a stronger oxidizing agent with increasing \(\mathrm{H}^{+}\) concentration.

Short Answer

Expert verified
No, the oxidizing power of \( \mathrm{F}_{2} \) is unlikely to be affected by the change in \( \mathrm{H}^{+} \) concentration because this ion is not directly involved in the redox half-reaction of fluorine.

Step by step solution

01

Identify the Redox Half-Reaction

The oxidation half-reaction governing the behavior of \(\mathrm{F}_{2}\) in the solution is: \[ \mathrm{F}_{2}+2e^{-} \rightarrow 2\mathrm{F}^{-}\]. In this reaction, fluorine is reduced as it gains electrons to become fluoride ions.
02

Assess the Effect of \( \mathrm{H}^{+} \)

It is important to note that the addition of \( \mathrm{H}^{+} \) ions does not directly affect the redox half-reaction. However, it increases the acidity of the solution. This changes the overall pH of the solution, which can influence the state of equilibrium.
03

Apply Le Chatelier’s Principle

Le Chatelier’s Principle states that if there is a change in concentration of a specific particle in a reaction, the chemical equilibrium will shift to oppose that change. Since the addition of \( \mathrm{H}^{+} \) ions does not directly influence the half-reaction of fluorine, fluorine's ability to act as an oxidizing agent is not likely to increase or decrease with the variation in \( \mathrm{H}^{+} \) concentration.

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Most popular questions from this chapter

One of the half-reactions for the electrolysis of water is $$ 2 \mathrm{H}^{+}(a q)+2 e^{-} \longrightarrow \mathrm{H}_{2}(g) $$ If \(0.845 \mathrm{~L}\) of \(\mathrm{H}_{2}\) is collected at \(25^{\circ} \mathrm{C}\) and \(782 \mathrm{mmHg}\), how many faradays of electricity had to pass through the solution?

The cathode reaction in the Leclanché cell is given by $$ 2 \mathrm{MnO}_{2}(s)+\mathrm{Zn}^{2+}(a q)+2 e^{-} \longrightarrow \mathrm{ZnMn}_{2} \mathrm{O}_{4}(s) $$ If a Leclanché cell produces a current of \(0.0050 \mathrm{~A}\) calculate how many hours this current supply will last if there are initially \(4.0 \mathrm{~g}\) of \(\mathrm{MnO}_{2}\) present in the cell. Assume that there is an excess of \(\mathrm{Zn}^{2+}\) ions.

Calculate the emf of the following concentration cell at \(25^{\circ} \mathrm{C}\) : $$ \mathrm{Cu}(s)\left|\mathrm{Cu}^{2+}(0.080 \mathrm{M}) \| \mathrm{Cu}^{2+}(1.2 \mathrm{M})\right| \mathrm{Cu}(s) $$

Describe the basic features of a galvanic cell. Why are the two components of the cell separated from each other?

What is the emf of a cell consisting of a \(\mathrm{Pb}^{2+} / \mathrm{Pb}\) half-cell and a \(\mathrm{Pt} / \mathrm{H}^{+} / \mathrm{H}_{2}\) half-cell if \(\left[\mathrm{Pb}^{2+}\right]=0.10 \mathrm{M}\) \(\left[\mathrm{H}^{+}\right]=0.050 \mathrm{M},\) and \(\mathrm{P}_{\mathrm{H}_{2}}=1.0 \mathrm{~atm} ?\)
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