Chapter 8, Problem 8.78EP

(a)

Interpretation Introduction

Interpretation:

The characteristic of dispersed phase not being trapped by filter paper applies to whether a true solution, a colloidal dispersion, or a suspension has to be indicated.

Concept Introduction:

• It is a homogeneous mixture of two or more solutes and solvent.
• It is composed of particles having diameters less than one nanometer.
• Through filtration, solute particles cannot be obtained.

Colloidal dispersion:

• It is a heterogeneous system formed of a dispersed phase and a dispersion medium.
• It is composed of particles having diameters from one-hundred nanometers.
• Particles do not diffuse through parchment paper, but easily diffuse through filter paper.

Suspension:

• It is a mixture in which the solute does not get dissolved, but will be suspended in the liquid and float freely.
• The nature of solution will be heterogeneous.
• It is composed of particles having diameters greater than 1000 nanometers.
• Particles do not diffuse through parchment paper or through filter paper.

(b)

Interpretation Introduction

Interpretation:

The characteristic of dispersed phase settles immediately under the influence of gravity applies to whether a true solution, a colloidal dispersion, or a suspension has to be indicated.

Concept Introduction:

• It is a homogeneous mixture of two or more solutes and solvent.
• It is composed of particles having diameters less than one nanometer.
• Through filtration, solute particles cannot be obtained.

Colloidal dispersion:

• It is a heterogeneous system formed of a dispersed phase and a dispersion medium.
• It is composed of particles having diameters from one-hundred nanometers.
• Particles do not diffuse through parchment paper, but easily diffuse through filter paper.

Suspension:

• It is a mixture in which the solute does not get dissolved, but will be suspended in the liquid and float freely.
• The nature of solution will be heterogeneous.
• It is composed of particles having diameters greater than 1000 nanometers.
• Particles do not diffuse through parchment paper or through filter paper.

(c)

Interpretation Introduction

Interpretation:

The characteristic of dispersed phase scatters light applies to whether a true solution, a colloidal dispersion, or a suspension has to be indicated.

Concept Introduction:

• It is a homogeneous mixture of two or more solutes and solvent.
• It is composed of particles having diameters less than one nanometer.
• Through filtration, solute particles cannot be obtained.

Colloidal dispersion:

• It is a heterogeneous system formed of a dispersed phase and a dispersion medium.
• It is composed of particles having diameters from one-hundred nanometers.
• Particles do not diffuse through parchment paper, but easily diffuse through filter paper.

Suspension:

• It is a mixture in which the solute does not get dissolved, but will be suspended in the liquid and float freely.
• The nature of solution will be heterogeneous.
• It is composed of particles having diameters greater than 1000 nanometers.
• Particles do not diffuse through parchment paper or through filter paper.

(d)

Interpretation Introduction

Interpretation:

The characteristic of large particles present in dispersed phase applies to whether a true solution, a colloidal dispersion, or a suspension has to be indicated.

Concept Introduction:

• It is a homogeneous mixture of two or more solutes and solvent.
• It is composed of particles having diameters less than one nanometer.
• Through filtration, solute particles cannot be obtained.

Colloidal dispersion:

• It is a heterogeneous system formed of a dispersed phase and a dispersion medium.
• It is composed of particles having diameters from one-hundred nanometers.
• Particles do not diffuse through parchment paper, but easily diffuse through filter paper.

Suspension:

• It is a mixture in which the solute does not get dissolved, but will be suspended in the liquid and float freely.
• The nature of solution will be heterogeneous.
• It is composed of particles having diameters greater than 1000 nanometers.
• Particles do not diffuse through parchment paper or through filter paper.