Chapter 3, Problem 3.93AP

a.

Summary Introduction

To determine:

The molar mass of ${\text{KNO}}_{\text{3}}$

Concept introduction:

The molar mass is defined as the number, which is equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of molecule relative to that of the ${\text{C}}^{12}$ atom, which is taken to have a mass of $12$.

b.

Summary Introduction

To determine:

The molar mass of ${\text{C}}_{\text{3}}{\text{H}}_{\text{6}}{\text{O}}_{\text{3}}$

Concept introduction:

The molar mass is defined as the number, which is equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of molecule relative to that of the ${\text{C}}^{12}$ atom, which is taken to have a mass of $12$.

c.

Summary Introduction

To determine:

The molar mass of ${\text{C}}_2{\text{H}}_{\text{6}}\text{O}$

Concept introduction:

The molar mass is defined as the number, which is equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of molecule relative to that of the ${\text{C}}^{12}$ atom, which is taken to have a mass of $12$.