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| Name | How to find the Oxidation Number for Mn in KMnO4 (Potassium permanganate) |
| Video Uploader | Video From Wayne Breslyn |
| Upload Date | This Video Uploaded At 30-07-2018 14:18:35 |
| Video Discription | To find the correct oxidation number for KMnO4 (Potassium permanganate), and each element in the compound, we use a few rules and some simple math. First, since the KMnO4 doesn’t have an overall charge (like NO3- or H3O+) we could say that the total of the oxidation numbers for KMnO4 will be zero since it is a neutral compound. We write the oxidation number (O.N.) for elements that we know and use these to figure out oxidation number for Mn. ---------- GENERAL RULES In a netural compound all O.N. must add up to zero. Group 1 = +1 Group 2 = +2 Hydrogen with Non-Metals = +1 Hydrogen with Metals (or Boron) = -1 Fluorine = -1 Oxygen = -2 (except in H2O2 or with Fluorine) Group 17(7A) = -1 except with Oxygen and other halogens lower in the group ---------- We know that Oxygen usually is -2 with a few exceptions. When Oxygen is in a peroxide, like H2O2 (Hydrogen peroxide), it has a charge of -1. When it is bonded to Fluorine (F) it has an oxidation number of +2. Here it is bonded to element symbol so the oxidation number on Oxygen is -2. Using this information we can figure out the oxidation number for the element Mn in KMnO4. |
| Category | Education |
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