If `K_(a)` of a weak acid is ` 4xx10^(-6)` and its concentration is 0.01 M. Find pH of solution

Explanation

To find the pH of a weak acid solution given its dissociation constant \( K_a \) and concentration, we can follow these steps:

### Step 1: Write the dissociation equation
Let the weak acid be represented as \( HA \). The dissociation of the weak acid can be represented as:
\[ HA \rightleftharpoons H^+ + A^- \]

### Step 2: Set up the initial concentrations
Given:
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