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A certain reaction is first order, and 570 ss after initiation of the reaction, 35.6 %%...

A certain reaction is first order, and 570 ss after initiation of the reaction, 35.6 %% of the reactant remains.

Part A: What is the rate constant for this reaction? Express your answer with the appropriate units.

Part B: At what time after initiation of the reaction will 10 %% of the reactant remain? Express your answer with the appropriate units.

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