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Osmotic Pressure

The Osmotic p...

Question

The Osmotic pressure of blood is 8.21 atm at 37 $^{o}$ C. How much glucose is used per lit for an intravenous injection that is to isotonic with blood.

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Solution

$π = 8.21 a t m, T = 273 + 37 = 310 K$
We know,
$π = C R T$
$8.21 = \frac{m}{M \times 1} \times 0.082 \times 310$
$m = \frac{8.21 \times 180}{0.082 \times 310}$
$m = 58.13 g$

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