If the half life period of a first order reaction is `2.31 xx 10^(3)` minutes, how long will it take for `1//5`th of the reactant to be left behind?

Explanation

To solve the problem of determining how long it will take for one-fifth of the reactant to be left behind in a first-order reaction with a given half-life, we can follow these steps:

### Step 1: Understand the relationship between half-life and rate constant
The half-life (t₁/₂) of a first-order reaction is given by the formula:
\[ t_{1/2} = \frac{0.693}{k} \]
where \( k \) is the rate constant.

### Step 2: Calculate the rate constant (k)
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