How to find the Oxidation Number for Mn in MnO2
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6 سال پیش
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To find the correct oxidation
To find the correct oxidation number for MnO2 (Manganese (IV) oxide), and each element in the compound, we use a few rules and some simple math.
First, since the MnO2 doesn’t have an overall charge (like NO3- or H3O+) we could say that the total of the oxidation numbers for MnO2 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.
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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
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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 MnO2.
First, since the MnO2 doesn’t have an overall charge (like NO3- or H3O+) we could say that the total of the oxidation numbers for MnO2 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
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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 MnO2.
6 سال پیش
در تاریخ 1397/05/03 منتشر شده
است.
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