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Old 04-15-2006, 07:22 AM   #18
QuizQuick
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Quote:
3. For the reaction 2NO2 ----> 2NO + O2

Rate = 1.4 * 10^-10 M*s [NO2]2 at 25.0 C.
If 2 mol of NO2 are initially present in a sealed 1.00 liter vessel at 25 C, what is the concentration of NO2 after 140 years?

I got 0.894 M.
stanfordream, for that question, doesn't it already tell you k (1.4 * 10^-10?). Also, it doesn't tell you the concentration of NO2, so how can you solve for k?