Chapter 5, Problem 5.31E

(a)

Interpretation Introduction

Interpretation:

The molarity of mannitol solution has to be calculated.

Concept introduction:

Number of moles can be calculated by using following formula,

  $No.ofmoles=\frac{Mass\times 1mol}{Molarmass}$

The Molarity of the solution can be calculated by using following formula

  $\text{Molarity of the solution}\text{=}\frac{\text{Moles}\text{of}\text{solute}}{\text{Volume}\text{of the solvent}\text{in}\text{L}}$

(b)

Interpretation Introduction

Interpretation:

Osmatic pressure of the solution has to be calculated.

Concept introduction:

Osmatic pressure of the solution can be calculated by using following formula,

  $\begin{array}{l}\Pi \text{ = iRT }\times \text{ Molarity}\\ \\ \text{Where,}\\ \Pi \text{ = }Osmaticpressure\\ R=Gascons\tan t\\ T=Tempearture\\ M=Molarity\end{array}$