How much volume of `0.2` M solution of acetic acid shouls be added to 100 ml of `0.2 ` M solution of sodium acetate to prepare a buffer solution of pH `5.00` ? `pK_(a)` for acid is ` 4.74 `

Explanation

To find the volume of 0.2 M acetic acid solution needed to prepare a buffer solution of pH 5.00 from 100 mL of 0.2 M sodium acetate, we will use the Henderson-Hasselbalch equation:

### Step-by-Step Solution:

1. **Write the Henderson-Hasselbalch Equation**:
\[ \text{pH} = \text{pK}_a + \log\left(\frac{[\text{Salt}]}{[\text{Acid}]}\right) \]
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