Oxidation number
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Re: Oxidation number
Oxygen has an oxidation number of -2, hydrogen has an oxidation number of +1. Group 1 elements are +1 and Group 2 elements are +2. Oxidation numbers for an entire element have to add up to the total charge of the entire molecule. Using this, you can calculate oxidation number for individual elements in a molecule.
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Re: Oxidation number
the oxidation number formula is (# metal atoms)(oxidation number)+(# each ligand)(charge of each ligand)=total charge of the molecule
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Re: Oxidation number
Here is a great video explaining oxidation numbers and how to find them:
https://www.youtube.com/watch?v=j0hI-a6EWWo
https://www.youtube.com/watch?v=j0hI-a6EWWo
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Re: Oxidation number
When finding the oxidation number of a particular atom, there are a few things to consider. I'll walk through an example and share a video to hopefully make it more understandable.
What is the oxidation number of the central atom in [ZnCl4]^-2 ?
The central atom in this coordination compound would be Zn, so that is the atom for which we are attempting to find the oxidation number.
To do this, we set up an equation where we consider the oxidation numbers of what we know. We know that the four Cl atoms have a -1 charge and that the overall compound has a charge of -2, so we set it up and solve for x.
x+4(-1)=-2
x=+2
Zn will have a +2 oxidation number.
Here's a video with more examples, simple and complex: https://www.youtube.com/watch?v=NWPt5chIfTA
What is the oxidation number of the central atom in [ZnCl4]^-2 ?
The central atom in this coordination compound would be Zn, so that is the atom for which we are attempting to find the oxidation number.
To do this, we set up an equation where we consider the oxidation numbers of what we know. We know that the four Cl atoms have a -1 charge and that the overall compound has a charge of -2, so we set it up and solve for x.
x+4(-1)=-2
x=+2
Zn will have a +2 oxidation number.
Here's a video with more examples, simple and complex: https://www.youtube.com/watch?v=NWPt5chIfTA
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Re: Oxidation number
In a review session, a UA said that:
(charge/oxidation # of TM) + (charge of ligands) = (total charge)
Hope this helps!
(charge/oxidation # of TM) + (charge of ligands) = (total charge)
Hope this helps!
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