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In a first-order reaction, the concentra...

In a first-order reaction, the concentration of the reactant is reduced to 12.5% in one hour. Calculate its half-life.

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To solve the problem of finding the half-life of a first-order reaction where the concentration of the reactant is reduced to 12.5% in one hour, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Reduction in Concentration**: - The concentration of the reactant is reduced to 12.5% of its initial value. If we assume the initial concentration is 100%, then after the reaction, it becomes 12.5%. 2. **Determine the Number of Half-Lives**: ...
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