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.

Answer 1

$\pi =8.21atm,T=273+37=310K$

We know,

$\pi =CRT$

$8.21=\frac{m}{M\times 1}\times 0.082\times 310$

$m=\frac{8.21\times 180}{0.082\times 310}$

$m=58.13g$