Calculate the pH and degree of hydrolsis of `0.01` M solution of KCN , `K_(s)` for HCN is ` 6.2 xx 10^(-19)` .

Explanation

To solve the problem, we will calculate the pH and the degree of hydrolysis of a 0.01 M solution of KCN, given that the ionization constant (K_a) for HCN is \(6.2 \times 10^{-19}\).

### Step 1: Determine the Hydrolysis Constant (K_h)
The hydrolysis constant \(K_h\) can be calculated using the relationship:
\[ K_h = \frac{K_w}{K_a} \]
where \(K_w\) is the ionization constant of water (\(1.0 \times 10^{-14}\) at 25°C).
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