Chapter 5, Problem 5.107P

Interpretation Introduction

(a)

Interpretation:

The number of moles of nicotine smoked in a day is to be determined when it is considered that an individual smokes a pack of 20 cigarettes a day. The mass of the content of the cigarette is 1.93 mg and the molar mass is 162.3g/mol.

Concept Introduction:

The number of moles of a substance is obtained from the molar mass of the substance and given mass of the substance, using the following formula:

  $n=\frac{m}{M}$

Here, m is mass and M is molar mass.

Interpretation Introduction

(b)

Interpretation:

The number of molecules of nicotine smoked in a day is to be determined when it is considered that an individual smokes a pack of 20 cigarettes a day. The mass of the content of the cigarette is 1.93mg and the molar mass is 162.3g/mol.

Concept Introduction:

The total number of molecules is determined by the multiplication of the total number of moles with the number of a molecule present in a mole.

This relation is given as-

  ${\text{N}}_{\text{atoms/molecules}}\text{=total number of moles×}\frac{\text{6}{\text{.02×10}}^{\text{23}}\text{ atoms/molecules}}{\text{1mol}}$