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Topic: Net Charge for Molecules  (Read 2227 times)

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Offline galpinj

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Net Charge for Molecules
« on: January 15, 2016, 11:26:44 PM »
Hi Everyone,

Quick question regarding net charge. I've been doing some practice problems regarding the names and net charges of molecules. I'm curious if there is a way to find the net charge from the name. For example, if I was asked the charge on Arsenate (AsO4), would there be a way to find the charge?

Basically, do I need to memorize the net charge on molecules like phosphate, perchlorate, nitrate, etc.?

Offline Borek

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Re: Net Charge for Molecules
« Reply #1 on: January 16, 2016, 03:42:37 AM »
I'm curious if there is a way to find the net charge from the name.

No.

Quote
Basically, do I need to memorize the net charge on molecules like phosphate, perchlorate, nitrate, etc.?

That's the simplest approach.

I wouldn't be surprised if there are sets of "rules" that can be used to predict these things, but they will be probably more complicated to remember and to use than just remembering several charges and formulas.
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Offline galpinj

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Re: Net Charge for Molecules
« Reply #2 on: January 18, 2016, 09:35:30 PM »
Thank you Borek,

I assumed this was the case, but I wanted to ask and see if there was some method I wasn't aware of.

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