Question: The decomposition reaction X products was studied as a function of time. Data are given in the table below. time / s [X] / mol

The decomposition reaction X products was studied as a function of time. Data are given in the table below.

time / s [X] / mol L1
0 (exactly) 2.150
8.08102 1.719
1.62103 1.287
2.42103 0.8601
3.23103 0.4284

What is the value of the rate constant?

Give your answer accurate to three significant figures. Do not give units as part of your answer, but use concentrations in mol L1 and time in seconds.

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