Chapter 22, Problem 17E

Interpretation Introduction

(a)

Interpretation:

The mass of ${\text{F}}_{\text{2}}$ in $1{\text{km}}^3$ of seawater needs to be determined.

Concept introduction:

The density is related to mass and volume as follows:

$d=\frac{m}{V}$

Here, m is mass and V is volume.

The following conversions are used:

Convert $1{\text{km}}^3$ to ${\text{cm}}^3$ as follows:

$\begin{array}{c}1\text{km=1000}\text{m}\\ \text{100}\text{cm=1}\text{m}\\ 1{\text{km}}^3={\left(\frac{1000\text{m}}{1\text{km}}\times \frac{100\text{cm}}{1\text{m}}\right)}^3={10}^{15}{\text{ cm}}^3\end{array}$

Interpretation Introduction

(b)

Interpretation:

Whether the process resembles for extracting bromine from seawater or not needs to be explained.

Concept introduction:

For the extraction, the extracting substance must be displaced by some other in the solution. Oxidizing agent is a chemical species that oxidizes others and gets reduced. Thus, a higher oxidizing agent cannot be displaced easily.