The osmotic pressure of blood is 7.65 atm at 310K. How much glucose(C6H12O6) in grams should be used per litre for an intravenous injection to be isotonic to blood.

π=CRTC=πRT=7.650.0821×310C=7.6525.45=0.3Glucose =0.3×180=54gm

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The osmotic pressure of blood is 7.65 atm at 310K. How much glucose(C₆H₁₂O₆) in grams should be used per litre for an intravenous injection to be isotonic to blood.

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answer is 54.

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$π = C R T$

$C = \frac{π}{R T} = \frac{7.65}{0.0821 \times 310}$

$C = \frac{7.65}{25.45} = 0.3$

Glucose $= 0.3 \times 180 = 54 g m$

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