Blood freezes at `272.44 K` and a solution of `3.0 g` of urea in `250 g` of water freezes at `272.63 K`. Calculate the osmotic pressure of blood at `300 K`. (Assume density of blood at `300 K` to be `1 g c c^(-1)`)

Explanation

To solve the problem, we need to calculate the osmotic pressure of blood at 300 K using the freezing point depression data provided. Here’s a step-by-step solution:

### Step 1: Identify the given data
- Freezing point of blood (pure solvent) = 272.44 K
- Freezing point of urea solution = 272.63 K
- Mass of urea (solute) = 3.0 g
- Mass of water (solvent) = 250 g
- Molar mass of urea (NH₂CONH₂) = 60 g/mol
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