5.1 Ionic Bonding
5.10.1 - Assignment of Oxidation Numbers
The rules for assigning oxidation numbers are in the Chemist"s tools
Let"s go via the examples below to view just how it"s done.
Now let"s take a look at sodium nitprice, NaNO3. What is the oxidation number of nitrogen?
First of all, let"s remember what we"ve learnt:
To determine the oxidation variety of nitrogen, we use
|Rule #6:||Oxygen is commonly assigned an oxidation number of -2 for oxides. In this case, we have 3 oxygen atoms in NO3-.|
|Rule #9:||The amount of oxidation numbers of an ion or facility ion is the same as the charge on that ion.|
Let the oxidation number of nitrogen be stood for as N. Set up the equation and solve for N.
You are watching: The oxidation number of n in nano3 is
N + 3 (-2) = -1
|N = +5|
The obvious charge on nitrogen is +5.
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