Chapter 2, Problem 2.27P

(a)

Interpretation Introduction

Interpretation:

Molecular mass of ${\text{TiO}}_{\text{2}}$ has to be calculated to five significant figures.

Concept Introduction:

In a molecule, the sum of atomic mass of all the atoms is known as molecular mass.  Atomic mass of an atom is the average of all the isotope of the particular element.  Molecular mass can be used to calculate the mass percentage of the atom present in the molecule.

(b)

Interpretation Introduction

Interpretation:

Molecular mass of ${\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}$ has to be calculated to five significant figures.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

Molecular mass of ${\text{V}}_{\text{2}}{\text{O}}_{\text{5}}$ has to be calculated to five significant figures.

Concept Introduction:

Refer part (a).

(d)

Interpretation Introduction

Interpretation:

Molecular mass of ${\text{P}}_{\text{4}}{\text{O}}_{\text{10}}$ has to be calculated to five significant figures.

Concept Introduction:

Refer part (a).