Chapter 1, Problem 11Q

(a)

Interpretation Introduction

Interpretation:

The given number should be expressed in scientific notation.

Concept introduction:

Scientific notation:

• It is used to express very large or very small numbers.
• It is used to express numbers in a notation which also indicates the precision of the number.

(b)

Interpretation Introduction

Interpretation:

Whether there is a similar value for the odor threshold of $\text{CO}$ has to be given.

Scientific notation:

• It is used to express very large or very small numbers.
• It is used to express numbers in a notation which also indicates the precision of the number.

Conversion of scientific notation into regular number:

  $\begin{array}{l}{\text{10}}^{\text{1}}\text{=}\text{10}\\ \\ {\text{10}}^{\text{4}}\text{=}\text{10×10×10×10}\\ \\ {\text{10}}^{\text{4}}\text{=}\text{10000}\end{array}$

(c)

Interpretation Introduction

Interpretation:

A pollutant other than nitrogen dioxide which has a sharp, easily detected odor has to be given.

Scientific notation:

• It is used to express very large or very small numbers.
• It is used to express numbers in a notation which also indicates the precision of the number.

Conversion of scientific notation into regular number:

  $\begin{array}{l}{\text{10}}^{\text{1}}\text{=}\text{10}\\ \\ {\text{10}}^{\text{4}}\text{=}\text{10×10×10×10}\\ \\ {\text{10}}^{\text{4}}\text{=}\text{10000}\end{array}$