Chapter 4, Problem 4.158MP

Interpretation Introduction

(a)

Interpretation:

The given chemical equation needs to be determined.

${\text{H}}_{\text{3}}{\text{MO}}_{\text{3}}{\text{(aq) + MnO}}_{\text{4}}^{\text{-}}\text{(aq) }\to {\text{ H}}_3{\text{MO}}_4{\text{(aq) + Mn}}^{2+}\text{(aq) (in acid)}$

Concept introduction:

A chemical equation is known as the written symbolic illustration of the chemical reaction. On the left-hand side of the equation, a reactant is present and on the right-hand side, the product is present. Both of them are connected with an arrow leading from left to right. According to the law of conservation of mass, no atoms are destroyed and created within the chemical reaction, therefore the number of atoms on the product as well as on reactant should be balanced on both sides.

Interpretation Introduction

(b)

Interpretation:

The moles of oxide formed and the number of moles of semimetal in the initial 0.200 g sample needs to be determined.

Concept introduction:

The mass is related to the number of moles and molar mass as follows:

$n=\frac{m}{M}$

Here, m is mass and M is molar mass.

Interpretation Introduction

(c)

Interpretation:

The semimetal M needs to be identified.

Concept introduction:

The mass is related to number of moles and molar mass as follows:

$n=\frac{m}{M}$

Here, m is mass and M is molar mass.