Chapter 14, Problem 64E

Interpretation Introduction

Interpretation:

Mass of hemoglobin must be present per $100.0\text{ mL}$ of a solution to exert an osmotic pressure of $\text{7}\text{.25 mmHg}$ at ${\text{25 }}^{0}C$ should be determined.

Concept introduction:

Osmosis is the diffusion of a fluid via a semi permeable membrane. When solution is separated by a semi permeable membrane, only solvent molecules can go through the membrane. The osmotic pressure of a solution is defined as the pressure difference required stopping this flow of solvent across the semi permeable membrane. The osmotic pressure is given by

$\pi =\frac{nRT}{V}$

p − osmotic pressure

n − number of moles

R − universal gas constant

T − absolute temperature

V - volume