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Topic: Acidic anion  (Read 6593 times)

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Offline yellowtail

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Acidic anion
« on: September 22, 2007, 03:42:39 PM »
Hi,

What is an acidic anion?

Thanks
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Offline sjb

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Re: Acidic anion
« Reply #1 on: September 23, 2007, 05:39:01 AM »
Consider what an acid is - there are various definitions depending on what type of work you're doing.

Consider what an anion is, then see if you can think of species that fit both definitions.

S
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Offline yellowtail

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Re: Acidic anion
« Reply #2 on: September 23, 2007, 10:13:53 AM »
I though it was a molecule, which upon dissosiating, released a hydrogen ion.
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Offline sjb

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Re: Acidic anion
« Reply #3 on: September 25, 2007, 10:29:15 AM »
OK, given that definition you may struggle to find an electronically neutral species that is also an anion ;)

Why not extend it further and wider to a species (in general) that dissociates to give a hydronium (H+) ion.

Any thoughts now?

S
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Offline yellowtail

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Re: Acidic anion
« Reply #4 on: September 26, 2007, 12:42:13 PM »
Could it be something like an ammonium molecule? 

I'm teaching myself chemisty (not part of my course) so if my question seems a bit simplistic that's why. I appreciate you help sjb.
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Offline AWK

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Re: Acidic anion
« Reply #5 on: September 26, 2007, 12:49:58 PM »
What about HSO4- ?
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Offline yellowtail

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Re: Acidic anion
« Reply #6 on: September 26, 2007, 02:10:30 PM »
That will be an acidic anion  :)

Can't believe I didn't get that, seems so obvious now. Where did I get ammonium from? thanks.
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