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A certain reaction is of first order . A...

A certain reaction is of first order . After 30 secoonds , `50` % of the reactant ramains.
Calculate the rate constant .

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To solve the problem, we will use the relationship between the rate constant (k) and the half-life (t_half) for a first-order reaction. ### Step-by-Step Solution: 1. **Identify the given data:** - The reaction is of first order. - After 30 seconds, 50% of the reactant remains. ...
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