Homework Help: chemistry

Posted by jess on Wednesday, November 17, 2010 at 10:30pm.

how do i solve the following problem?

Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction:

2NO2 → 2NO + O2

In a particular experiment at 300°C, [NO2] drops from 0.0100 to 0.00650 M in 100 s. The rate of
Disappearance of NO2 for this period is __________ M/s.
3.5x10^-5 is supposedly the answer, but how do i get to that answer?

chemistry - DrBob222, Thursday, November 18, 2010 at 12:03am
(0.0100-0.00650)/100 =
chemistry - Apchem geek, Sunday, February 27, 2011 at 11:19pm
(.1M-.0065M)/(100sec)=3.5e-5

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