Calculate the pH of a 0.01 N solution of acetic acid. `K_(a)` for `CH_(3)CO OH` is `1.8xx10^(-5)` at `25^(@)`C.

Explanation

To calculate the pH of a 0.01 N solution of acetic acid (CH₃COOH) with a given dissociation constant \( K_a = 1.8 \times 10^{-5} \), we can follow these steps:

### Step 1: Write the dissociation equation
Acetic acid dissociates in water as follows:
\[ \text{CH}_3\text{COOH} \rightleftharpoons \text{CH}_3\text{COO}^- + \text{H}_3\text{O}^+ \]

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