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August 5, 2015

Homework Help: Chemistry

Posted by help on Thursday, February 23, 2012 at 1:05pm.

An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below.

A: [NO]0 = 9.63 × 10-3 M, [O2]0 = 4.1 × 10-4 M
t(s) 0/3.0/6.0/9.0/12.0
[O2] 4.1/2.05/1.02/0.51/0.25
*[O2] is in(10-4 M)

B: [NO]0 = 4.1 × 10-4 M, [O2]0 = 9.75 × 10-3 M
t(s) 0/1.00/2.00/3.00/4.00
[NO] 4.1/2.05/1.43/1.02/0.82
*[NO] is in(10-4 M)


I figured out the rate law:
Rate=k[O2][NO]2

But I can't find the rate constant! Please help!

"Calculate the rate constant. (in M-2 s-1)"

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