Question: Suppose the half - life is 6 9 . 4 s for a first order reaction and the reactant concentration is 0 . 0 5

Suppose the half-life is 69.4s for a first order reaction and the reactant concentration is 0.0516M19.9s after the reaction starts. How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0164M?
Answer:
Suppose the half-life is 69.4s for a first order reaction and

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