0.5 L each of three samples of `H_2 O_2` labelled 10 vol and 20 vol are mixed and then diluted with equal volume of water. What is the strength of resultant `H_2 O_2` solution.

Explanation

To solve the problem of finding the strength of the resultant H₂O₂ solution after mixing three samples of different volumes and diluting them, we can follow these steps:

### Step 1: Determine the Normality of Each Sample
The normality (N) of a solution can be calculated using the formula:
\[ \text{Normality} = \frac{\text{Volume Strength}}{5.6} \]

For the three samples:
- **Sample 1 (10 vol)**:
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