Chapter 6, Problem 6.41AP

(a)

Interpretation Introduction

Interpretation:

The given reaction equation has to be balanced.

Concept introduction:

Balanced equation: A chemical equation in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and products.

(b)

Interpretation Introduction

Interpretation:

The mole of CO needed to react with ${\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}$ has to be determined.

Concept introduction:

Mole calculation: $\text{No}\text{. of moles = }\frac{\text{Mass}}{\text{Molar}\text{Mass}}$ The number of moles is obtained by dividing the mass of substance with molar mass of the same substance.

(c)

Interpretation Introduction

Interpretation:

The gram of CO needed to react with ${\text{Fe}}_{\text{2}}{\text{O}}_{\text{3}}$ has to be calculated.

Concept introduction:

Mole calculation: $\text{No}\text{. of moles = }\frac{\text{Mass}}{\text{Molar}\text{Mass}}$ The number of moles is obtained by dividing the mass of substance with molar mass of the same substance.

Mass of substance: $\text{Mass = }\left(\text{No}\text{. of moles}\right)\left(\text{Molar}\text{Mass}\right)$.

By multiplying no.of moles with molar mass of the same substance obtains the mass.