Increasing reducing power

Moderators: Chem_Mod, Chem_Admin

Ashley McClearnen 1B
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

Increasing reducing power

Postby Ashley McClearnen 1B » Mon Mar 11, 2019 4:30 pm

How do you know what species have high reducing power?

JiangJC Dis2K
Posts: 72
Joined: Fri Oct 12, 2018 12:16 am

Re: Increasing reducing power

Postby JiangJC Dis2K » Mon Mar 11, 2019 4:31 pm

Oxidation and reduction are opposites. So the species that has a higher tendency to oxidize has a higher reducing power. For example if the reduction potential of species 1 was .34v and species 2 was .78v, species 1 is more likely to be oxidized and therefore has a higher reducing power.

Madeline Ho 1C
Posts: 37
Joined: Mon Apr 23, 2018 3:00 am

Re: Increasing reducing power

Postby Madeline Ho 1C » Mon Mar 11, 2019 4:44 pm

The E values we're given are reduction potentials, so the greater the value, the more likely it is to be reduced. Therefore, the species with higher reducing power are the species more likely to be oxidized, i.e. a smaller E value.

Rogelio Bazan 1D
Posts: 64
Joined: Tue Nov 14, 2017 3:01 am

Re: Increasing reducing power

Postby Rogelio Bazan 1D » Mon Mar 11, 2019 4:45 pm

Conceptually what I find helpful is looking at periodic trends along the periodic table looking at electronegativity as you go up and to the left toward Florine you electronegativity increases on the periodic table. To define Electronegativity it is the chemical property that describes the ability of an atom to attract electrons toward itself. to define Reduction Potential it is the tendency of a chemical species to acquire electrons (aka being reduced).

So to answer your question, 'How do you know what species have high reducing power?' I look at electronegativity of the element to determine if it has a high Reduction Potential. A simple example) Fluorine has the highest electronegativity value and also has the highest standard reduction potential. So to determine if it has a high reducing power you can look at electronegativity as it is relative to the number of electrons the atom can pull toward itself. Hope this helps.

Kyither Min 2K
Posts: 60
Joined: Wed Oct 03, 2018 12:15 am

Re: Increasing reducing power

Postby Kyither Min 2K » Tue Mar 12, 2019 11:15 pm

So reducing power refers to the strength of the ion/substance as a reducing agent. The ion/substance that is being oxidized is also the reducing agent. Therefore, the more the ion/substance wants to be oxidized the stronger it is as a reducing agent or reducing power. We can determine the oxidization power through the standard reduction potential. The more smaller the number, the more it wants to be oxidized so the stronger the reducing power.


Return to “Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams”

Who is online

Users browsing this forum: No registered users and 1 guest