Determine the degree of ionisation and pH of a 0.05 M ammonia solution. Also calculate ionisation constant of the conjugate acid ammonia. Given that `K_(b)` for `NH_(3)" is "1.77 xx 10^(-5)`.

Explanation

To determine the degree of ionization, pH of a 0.05 M ammonia solution, and the ionization constant of its conjugate acid, we can follow these steps:

### Step 1: Write the ionization equation for ammonia
Ammonia (NH₃) ionizes in water as follows:
\[ \text{NH}_3 + \text{H}_2\text{O} \rightleftharpoons \text{NH}_4^+ + \text{OH}^- \]

### Step 2: Set up the expression for the base dissociation constant (K_b)
The base dissociation constant \( K_b \) for ammonia is given by:
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