Strong vs Weak Oxidizing Agents

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Sumaiyah I 1E
Posts: 16
Joined: Fri Sep 25, 2015 3:00 am

Strong vs Weak Oxidizing Agents

Postby Sumaiyah I 1E » Wed Mar 09, 2016 10:31 pm

I completely forgot how to figure out if a molecule is a strong or weak oxidizing agent, and how to compare them. For example, Midterm Question 7A asks to order the following oxidizing agents by increasing strength under standard state conditions: O2(g), MnO4-(aq), and NO3-(aq). How would one go about solving this? Thank you!

Ariana Bowers 1H
Posts: 9
Joined: Fri Sep 25, 2015 3:00 am

Re: Strong vs Weak Oxidizing Agents

Postby Ariana Bowers 1H » Wed Mar 09, 2016 11:00 pm

To solve 7A you look at the three equations, each on having one of the three oxidizing agents. You then look at the value of E knot for each equation and see which oxidizing agent resulted in the highest E knot value. The highest E knot value means the oxidizing agent is the strongest, and the lowest E knot value means the oxidizing agent is the weakest. Thus, the answer for 7A would be NO3- < O2 < MnO4-.

JanejilaSnider2F
Posts: 10
Joined: Fri Sep 25, 2015 3:00 am

Re: Strong vs Weak Oxidizing Agents

Postby JanejilaSnider2F » Mon Mar 14, 2016 11:00 pm

The E knot value given beside the options indicates their strength as an oxidizing agent, so the larger the E knot value, the stronger it is and you arrange the agents in order of increasing E knot values. :)


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