A second-order reaction has a half-life of 12 s when the initial concentration of reactant is 0.98 M. The rate constant for this reaction is __________ M-1s-1.
A) 12
B) 2.0 x 10-2
C) 8.5 × 10-2
D) 4.3 x 10-2
E) 4.3
Correct Answer:
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