Complex Ions - Video Tutorials & Practice Problems
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concept
Complex Ion Formation
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2m
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Now, when it comes to a complex ion, what is it? Well, a complex ion is an overall charged adult. So remember it's charged because it has the name ion in it, it's positive or negative that specifically has a transition metal cat ion at its center covertly bonded to a lien or liam or multiple versions of it. Now, this is the definition we're gonna use for our gen chem course. Now, of course, there are a ducts that could have main group elements instead of a transition metal at the center. But those we tend not to see, we're gonna say the complex eye on a dead, a dead giveaway to recognize it is that it's always written in brackets. So we start looking at more complex formulas and part of those formulas will contain complex ions, you can always spot them by the portion that's in brackets. Now, here, an example of a complex ion is show ans. So here we have our metal cion in the form of copper three ion and our lances here are four ammonia, those four ammonia who attach themselves to the copper three ion. So we're gonna have to draw them here and remember, the overall charge of our adduct comes from the combined charges of our metal C ion and all the ligands together. So the copper metal has a three plus charge ammonia, four of them, they're all neutral. So they have no charge. So the overall charge here of our add a product or our complex ion now is three plus. So remember we were combining these structures together, we're adding them together. So that's why it's called an a duct. But another name for this adopt is our complex ion. So the complex ion comes from combining together the metal cion with some set number of ligands. So keep that in mind.
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example
Complex Ions Example
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57s
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Here it says provide the complex ion structure when a titanium for ion combines with six carbon monoxide molecules. All right. So we have titanium in the center molecules tells us that the carbon monoxide is neutral. So here we're gonna have six of them attaching to the titanium. And remember it's the carbon of carbon monoxide that is connecting to the titanium. So make sure you show it's the carbon connecting. And here we're saying that it's an ion. So it's gonna have a chart. So we put this in brackets and remember the overall charge comes from the combined charges of the metal cion with all the ligands attacked. Here, titanium is four plus the carbon monoxides are neutral. So overall the charge of this complex ion would be four plus. So this will represent our complex ion structure.
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Problem
Problem
Provide the complex ion structure when Cu+ combines with 2 hydroxide ions and 2 cyanide ions.
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Problem
Problem
Provide the complex ion structure when a Cobalt (IV) ion combines with 2 chloride anions and 2 water molecules.