At 37°C, the osmotic pressure of blood is 7.65 aim. How much glucose should be used per Hire for an intravenous injection that is 10 have the same osmotic pressure as blood. [Molar mass of glucose = 180g mol-¹]
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Explanation:
The osmotic pressure is given by Π=CRT
Here, C is the molar concentration, R is the ideal gas constant (0.08206 L atm / mol . K) and T is the absolute temperature.
Now,
7.65=C×0.08206×(273+37)
∴C=0.3 M
⇒1 L of the solution will contain 0.3 moles of glucose. The molar mass of glucose is 180 g/mol.
This corresponds to 0.3×180=54.0 g of glucose.
ans = 54.0g
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