Chapter 3, Problem 3.129AP

(a)

Interpretation Introduction

Interpretation: The names of ${\text{Mn}}_2{\text{O}}_3$ and ${\text{MnO}}_2$, mass percent of manganese and the explanation for law of multiple proportions for these compounds is to be determined.

Concept introduction: The mass percent of manganese in the given compound is calculated by dividing the molar mass of manganese by the molar mass of compound and multiply with $100$.

To determine: The names of the compounds ${\text{Mn}}_2{\text{O}}_3$ and ${\text{MnO}}_2$.

(b)

Interpretation Introduction

To determine: The percentage of manganese by mass in the compounds ${\text{Mn}}_2{\text{O}}_3$ and ${\text{MnO}}_2$.

(c)

Interpretation Introduction

To determine: If the compounds ${\text{Mn}}_2{\text{O}}_3$ and ${\text{MnO}}_2$ follow law of multiple proportions or not.