Question 8.65

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Rhiannon Imbeah 2I
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Joined: Fri Sep 25, 2015 3:00 am

Question 8.65

Postby Rhiannon Imbeah 2I » Sun Jan 22, 2017 11:27 pm

In question 8.65 the following equations:

1) 2NO +O2 --> 2NO2
2) 2NO2 + O2 --> N2O5

With the final equation reading:

2NO + 3/2 O2 --> N2O5

Following the process it appears that 2NO2 was cancelled out of the first and second, but why is that?

Thank you for your help!

Chem_Mod
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Re: Question 8.65

Postby Chem_Mod » Mon Jan 23, 2017 12:55 pm

Was this equation in the book? Because the second one appears to be unabalanced; it should be:

2) 2NO2 + O2 --> N2O5

Then, when you combine both equations, you get:

2NO + O2 + 2NO2 + O2 --> 2NO2 + N2O5

Because 2NO2 is on both sides of the reaction, it gets cancelled out and the resulting equation is:

2NO + O2 --> N2O5

Rhiannon Imbeah 2I
Posts: 30
Joined: Fri Sep 25, 2015 3:00 am

Re: Question 8.65

Postby Rhiannon Imbeah 2I » Sun Jan 29, 2017 9:52 pm

Yes, I had to balance it but forgot to type it in. Thank you for the clarification.


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