Calculate the degree of hydrolysis and `pH` of `0.2M` solution of `NH_(4)C1` Given `K_(b)` for `NH_(4)OH` is `1.8 xx 10^(-5)`.

Explanation

To solve the problem of calculating the degree of hydrolysis and pH of a 0.2 M solution of ammonium chloride (NH₄Cl), we will follow these steps:

### Step 1: Understand the nature of NH₄Cl
NH₄Cl is a salt formed from a weak base (NH₄OH) and a strong acid (HCl). When dissolved in water, it hydrolyzes to produce NH₄⁺ ions, which can affect the pH of the solution.

### Step 2: Calculate the degree of hydrolysis (h)
The degree of hydrolysis (h) for a salt of a weak base and a strong acid can be calculated using the formula:

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