1. Tardigrade
  2. Question
  3. Chemistry
  4. The average osmotic pressure of human blood is 7.8 bar at 37° C. What is the concentration of an aqueous NaCl solution that could be used in the blood stream?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The average osmotic pressure of human blood is $7.8$ bar at $37^{\circ}\, C$. What is the concentration of an aqueous $NaCl$ solution that could be used in the blood stream?

AIIMSAIIMS 2004Solutions

Solution:

Nacl should lie isotonic with
blood
$\pi_{\text {blood }}= C _{\text {Nacl }} RT \times i$
$7.8= C \times 0.0821 \times 310 \times 2$
$C =0.153 mole ^{-1}$
The concentration of on
aqueous Nacl solution that
is used in blood stream
is $0.15 mol / L$