Show that time required for the completion of 99% of the first order reaction is twice the 90% of completion of the reaction.

Explanation

To show that the time required for the completion of 99% of a first-order reaction is twice the time required for the completion of 90% of the same reaction, we can use the first-order kinetics equation.

### Step-by-Step Solution:

1. **Understanding the First-Order Reaction Equation**:
The integrated rate law for a first-order reaction is given by:
\[
t = \frac{2.303}{k} \log \left( \frac{A_0}{A_t} \right)
...