Question

A second-order reaction starts with an initial concentration of 0.100 mol/L of the reactant. If the rate constant is 3.6 x 10-2L/(mol·s), what is the time required to decrease the initial concentration to 0.050 mol/L?
A) 280 s
B) 420 s
C) 19.3 s
D) 1.39 s
E) 830 s

Answer

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