Chapter 3, Problem 3.119P

(a)

Interpretation Introduction

Interpretation:

The statement “a mole of one substance has the same number of atoms as a mole of any other substance” is true or false is to be determined.

Concept introduction:

A mole can be explained as the substance that contains exactly $6.023\times {10}^{23}$ atoms or molecules per mole. A mole is a unit of measurement.

(b)

Interpretation Introduction

Interpretation:

The statement “the theoretical yield for a reaction is based on the balanced chemical reaction” is true or false is to be determined.

Concept introduction:

The expression to calculate the moles of the substance as follows:

  $\text{Moles of substance}=\frac{\text{Mass of substance}}{\text{Molar mass of substance}}$

The theoretical yield can be explained as the number of products will be formed with given quantities of reactants in the chemical reaction.

(c)

Interpretation Introduction

Interpretation:

The statement “a limiting reactant problem is being stated when the available quantity of one of the reactants is given in moles” is true or false is to be determined.

Concept introduction:

A mole can be explained as the substance that contains exactly $6.023\times {10}^{23}$ atoms or molecules per mole.

The limiting reactants can be described as the substance that is totally consumed in the chemical reaction.

(d)

Interpretation Introduction

Interpretation:

The statement “the empirical formula and molecular formula of a compound are always different” is true or false is to be determined.

Concept introduction:

An empirical formula gives the simplest whole number ratio of atoms of each element present in a compound.

The molecular formula tells the exact number of atoms of each element present in a compound.