A weak electrolyte XY is 5% dissociated in water. What is the freezing point of a 0.01 molal aqueous solution of XY ? The cryoscopic constant of water is 1.86 K/m.

Explanation

To solve the problem of finding the freezing point of a 0.01 molal aqueous solution of the weak electrolyte XY, which is 5% dissociated in water, we will follow these steps:

### Step 1: Calculate the degree of dissociation (α)
The degree of dissociation (α) is given as 5%. We can express this as a decimal:
\[ \alpha = \frac{5}{100} = 0.05 \]

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