Chapter 1, Problem 1.18P

(a)

Interpretation Introduction

Interpretation:

The maximum pressure of ozone in Antarctic stratosphere is given as $19\text{ mPa}$ and it has to be converted into bars.

(b)

Interpretation Introduction

Interpretation:

Molar concentration of ozone in Antarctic stratosphere at $-70°C$ and at the pressure calculated has to be calculated.

Concept Introduction:

Ideal gas equation relates concentration of a gaseous substance with pressure and temperature.  The equation representing the relation is given as,

$PV\text{ = nRT}$

Where,

$\begin{array}{l}P=\text{ Pressure}\\ \text{V}\text{= Volume}\\ \text{n}\text{= Number of moles of the gaseous substance}\\ \text{T}\text{= Temperature}\\ \text{R}\text{= Universal gas constant}\end{array}$

Molarity, also formal concentration is one of the parameters used to express concentration of a solution.  It is defined as the number of moles of the solute dissolved per liter of the solution.  It is expressed as,

$\text{Molarity = }\frac{number\text{ of }molesof\text{ solute}}{volume\text{ of solution in L}}$