Chapter 4, Problem 4.15DQ

Interpretation Introduction

Interpretation:

It should be explained that how osmotic pressure measurements can be used to determined the molar mass of a polymer.

Concept introduction:

Colligative properties: properties of solutions which having influence on the concentration of the solute in it. Colligative properties are,

• Decrease in the vapour pressure
• Increase in the boiling point
• Decline in the freezing point
• Osmotic pressure

$\pi =\frac{w_{2}RT}{m_{2}V}\boxed{\begin{array}{l}Where,\\ \pi :osmoticpressure\\ w_2:massofsolute\\ m_2:molarmassofsolute\\ R:cons\tan t\\ V:volume\end{array}}$