(Answered) A reaction that is second-order in one reactant has a rate

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A reaction that is second-order in one reactant has a rate constant of 2.2 × 10-2 L/(mol · s). If the initial concentration of the reactant is 0.360 mol/L, how long will it take for the concentration to become 0.180 mol/L?

320 s
63 s
1300 s
32 s
130 s

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