Chapter 13, Problem 15PE

(a)

Interpretation Introduction

Interpretation:

Name of ${\text{BaBr}}_{\text{2}}\cdot {\text{2H}}_{\text{2}}\text{O}$ hydrate has to be determined.

Concept Introduction:

Name of the hydrate is determined as follows:

1 Identify the name of elements present in the formula of molecule.

2 Identify the oxidation state of each element present in the name of molecule.

3 Number of oxidation state is cross multiplied as number of atoms in the formula to neutralize the charge.

4 Identify the number of water molecules that decides prefix is as follows:

$\begin{array}{cc}\text{Prefix}& \text{Number of water molecules}\\ \text{mono}& \text{1}\\ \text{di}& \text{2}\\ \text{tri}& \text{3}\\ \text{tetra}& \text{4}\\ \text{penta}& \text{5}\\ \text{hexa}& \text{6}\\ \text{hepta}& \text{7}\\ \text{octa}& \text{8}\\ \text{nona}& \text{9}\\ \text{deca}& \text{10}\end{array}$

(b)

Interpretation Introduction

Interpretation:

Name of ${\text{AlCl}}_3\cdot {\text{6H}}_{\text{2}}\text{O}$ hydrate has to be determined.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Name of ${\text{FePO}}_4\cdot {\text{4H}}_{\text{2}}\text{O}$ hydrate has to be determined.

Concept Introduction:

Refer to part (a).