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Topic: Nitrite VS. Nitrogen Dioxide  (Read 21384 times)

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Offline EX5TASY

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Nitrite VS. Nitrogen Dioxide
« on: January 23, 2007, 06:05:52 PM »
In naming compounds, how come

Nitrite: NO2-

Nitrogen Dioxide: NO2

How come there are 2 names? This question is stemming from THIS question:

What is the proper Chemical Name for: Cr(NO2)3?
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Offline Dan

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Re: Nitrite VS. Nitrogen Dioxide
« Reply #1 on: January 23, 2007, 06:10:08 PM »
For the same reason you dont call Cl and Cl- the same thing - they are different.
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Offline EX5TASY

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Re: Nitrite VS. Nitrogen Dioxide
« Reply #2 on: January 23, 2007, 06:24:13 PM »
So my initial thought for the  question

"What is the proper Chemical Name for: Cr(NO2)3?"

was Chromium III Nitrite, but then I decided it was just Chromium Nitrite. Both are wrong, what should it be?

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Offline english

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Re: Nitrite VS. Nitrogen Dioxide
« Reply #3 on: January 23, 2007, 06:29:43 PM »
Quote from: EX5TASY on January 23, 2007, 06:24:13 PM
So my initial thought for the  question

"What is the proper Chemical Name for: Cr(NO2)3?"

was Chromium III Nitrite, but then I decided it was just Chromium Nitrite. Both are wrong, what should it be?



It would be chromium nitrite if chromium only had one oxidation state.  +3 is one of multiple oxidation states, thus it must be designated as chromium(III) nitrite.

Are you sure that your book says this is wrong?  Doesn't look wrong to me.
« Last Edit: January 23, 2007, 06:35:04 PM by k.V. »
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Offline EX5TASY

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Re: Nitrite VS. Nitrogen Dioxide
« Reply #4 on: January 23, 2007, 06:46:45 PM »
It's my professor's online quiz, and neither of those are right...   :-\
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Offline enahs

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Re: Nitrite VS. Nitrogen Dioxide
« Reply #5 on: January 23, 2007, 07:27:35 PM »
Make sure you are typing it in properly, as the online system is not a human and so can only work if done exactly.

Chromium(III) nitrite

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