If the half life of a first order reaction in A is 2 min, how long will it take A to reach a) 25 percent of its initial concentration b) 10 percent of its initial concentration?

Explanation

To solve the problem step by step, we will use the first-order reaction kinetics equations.

### Given:
- Half-life (t₁/₂) of the reaction = 2 minutes

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