For estimating ozone in the air, a certain volume of air is passed through an . Alkaline Kl solution when `O_(2) ` is evolved and iodide is oxidized to iodine . When such a solution is acidified , free iodine is evolved which can be titrated with standard `Na_(2)S_(2)O_(3)` . Solution : in an experiment, 10 L air at 1 atm and `27^(@) C` were passed through an alkaline Kl solution , and at the end, the iodine was entrapped in a solution which on titration as above required `1.5` ml of `0.01 N Na_(2)S_(2)O_(3)` solution. Calculate volume percentage of ozone in the sample.

Explanation

To calculate the volume percentage of ozone in the air sample, we will follow these steps:

### Step 1: Write the Reaction
The reaction that occurs when ozone reacts with alkaline potassium iodide (KI) is:
\[ 2 \text{KI} + \text{O}_3 + \text{H}_2\text{O} \rightarrow 2 \text{KOH} + \text{I}_2 + \text{O}_2 \]

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