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November 01, 2025, 12:31:52 pm
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Author Topic: vcaa Q help?  (Read 922 times)  Share 

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poohead

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vcaa Q help?
« on: April 15, 2010, 09:00:22 pm »
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this comes from the 2002
exam 1, q.10

5.00 g of nitrogen is completely converted into an oxide of nitrogen. The mass of the oxide formed is 19.3 g.
The empirical formula of the oxide would be
A. NO
B. N2O3
C. NO2
D. N2O

any idea how i approach this?  :-[
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the.watchman

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Re: vcaa Q help?
« Reply #1 on: April 15, 2010, 09:07:35 pm »
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Well,









Erm, what did I do wrong now...?
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Blakhitman

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Re: vcaa Q help?
« Reply #2 on: April 15, 2010, 09:40:50 pm »
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Quote from: the.watchman on April 15, 2010, 09:07:35 pm
Well,









Erm, what did I do wrong now...?

You're right, they copied it wrong!
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superflya

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Re: vcaa Q help?
« Reply #3 on: April 15, 2010, 09:42:58 pm »
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i assume option d would have to be
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Blakhitman

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Re: vcaa Q help?
« Reply #4 on: April 15, 2010, 09:43:47 pm »
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Question 10
5.00 g of nitrogen is completely converted into an oxide of nitrogen. The mass of the oxide formed is 19.3 g.
The empirical formula of the oxide would be
A. NO
B. N2O3
C. NO2
D. N2O5

from http://www.vcaa.vic.edu.au/vce/studies/chemistry/exams/chemex12002.pdf
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the.watchman

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Re: vcaa Q help?
« Reply #5 on: April 15, 2010, 09:45:23 pm »
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Good, phew!
I thought I was going mad :D

(This makes a strange 1900th post :D)
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Remember, remember the 5th of November

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2011 - Eng - Phys - Chem - Spesh - Latin - UMAT
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poohead

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Re: vcaa Q help?
« Reply #6 on: April 16, 2010, 11:23:33 pm »
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my bad :s
sorry
thanks for the help :)
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