# Questions tagged [reduction-potential]

For questions about the reduction potential (A measure of the tendency of a chemical species to acquire electrons and thereby be reduced) or its applications. Also see the tag [electrochemistry].

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### why dont nernst equation has a concentration/pressure term? [closed]

Nernst equation can be helpful to find the potential of cell when the conditions are not standard, so E cell must depend on concentration and pressure (because they are the cause its value deviated ...
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### Comparison of the electronegativity of halogens and the reduction potential of halide ions

While studying the electrolysis of aqueous solutions, we often have to deal with more than one ion at the anode and cathode, and we have to determine which one will discharge. For example, if we have ...
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### Why does metal atom get an effective potential difference in voltaic cells [closed]

Why is it that metal atoms , experience this potential difference when immersed only in their salt solutions. When they are in contact in real life we cannot see current conducting through it.
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### what does the oxidation/reduction potential actually mean? [closed]

The standard potential of a species is actually its tendency to gain/lose electrons and get reduced/oxidized. But what I want to understand : 1- Is the standard potential an absolute quantity, or a ...
114 views

### Regarding the standard reduction potential and electrolyte/solid interface

I am modelling lithium-sulfur batteries ($\ce{LiS}$ batteries) and a strange phenomenom happens during charge, named infinite charging, which I show below: The factor $f_\mathrm{C}$ that appears in ...
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### Why does copper(II) sulfate react with potassium iodide in aqueous solution?

According to the list of standard reduction potentials [1, p. 5-79] $E^\circ(\ce{Cu^2+/Cu^+}) = \pu{+0.153 V},$ while $E^\circ(\ce{I2/I^-}) = \pu{+0.5355 V}.$ Doesn't it mean that iodine has more ...
1 vote
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### How to determine the cell potential of chromium(III) — permanganate cell?

Determine the cell potential of the following cell: $$\ce{Pt | Cr^3+ (\pu{0.125 M}), Cr2O7^2- (\pu{0.200 M}), H+ (\pu{0.600 M}) || MnO4- (\pu{0.150 M}), Mn^2+ (\pu{0.400 M}), H+ (\pu{0.250 M}) | Pt}$$ ...
1 vote
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### Cyclic voltammetry graph of graphite electrode in NaOH

I'm a student who is a beginner to cyclic voltammetry and university electrochemistry in general. For my lab experiment, I performed cyclic voltammetry on a graphite electrode in 1 M NaOH with Ag|AgCl ...
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### How to write the Nernst Equation for this reaction?

I am required to write the Nernst equation for the following reaction: $\ce{O_2 + 4H^+ + 4e^- -> 2H_2O}$ Clearly, here $\ce{O_2}$ is getting reduced from an oxidation number of zero to an ...
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1 vote