Question

At $37^\circ C$ , the osmotic pressure of blood is 8.21 atm. The amount of glucose that should be used per litre for an intravenous injection so that it becomes isotonic with blood is

• A. 117 g
• B. 58.06 g
• C. 108 g
• D. 580.6 g

Answer 1

Answer: (B)

$C=\frac{\pi }{R T}=\frac{8.21}{0.0821 \times 310}$
$\frac{W}{180 \times 1}=\frac{8.21}{0.0821 \times 310}$
$\text{W} \, \text{=} \, \frac{\text{8} \text{.21} \, \times \, \text{180}}{\text{0} \text{.0821} \, \times \, \text{310}} \, \text{=} \, \text{58} \text{.06} \, \text{g}$