Chapter 8 Section 1 Describing Chemical Reactions p. 261-275

1

SolutionsSolutionsChapter 12 Modern Chapter 12 Modern ChemistryChemistry

Sections 1-3Sections 1-3Types of MixturesTypes of Mixtures

The Solution ProcessThe Solution ProcessConcentrations of Concentrations of

SolutionSolution

Chapter 12 Section 1 Types of Mixtures p. 401-406

2

Types of MixturesTypes of Mixtures

Section 12.1Section 12.1

Chapter 12 Section 1 Types of Mixtures p. 401-406

3

ColloidDispersed phaseDispersing mediumElectrolyteNonelectrolyte SoluteSolventSolution

VocabularyVocabularySuspensionTyndall Effect[Types of Colloids][Types of Mixtures]

Chapter 12 Section 1 Types of Mixtures p. 401-406

4

SOLUTION

Concept Map 12.1Concept Map 12.1

SOLUTE SOLVENT

COLLOIDS SUSPENSIONS

NONELECTROLYTES

ELECTROLYTES

DISPERSINGMEDIUM

DISPERSEDPHASE

TYPES OFCOLLOIDS

TYNDALL EFFECT

TYPES OF MIXTURES

Chapter 12 Section 1 Types of Mixtures p. 401-406

5

• A homogeneous mixture of two or more substances in a single phase

• Particles are thoroughly mixed and remains mixed indefinitely

• Components of a solution– Solvent: does the dissolving; the larger

amount– Solute: is being dissolved; the smaller

amount

SolutionSolution

Chapter 12 Section 1 Types of Mixtures p. 401-406

6p. 402

Liqu

id a

nd s

olid

sol

utes

Liqu

id a

nd s

olid

sol

utes

Chapter 12 Section 1 Types of Mixtures p. 401-406

7

• Solutes and solvents can be any state of matter.

• Look at page 402 for examples• Alloys –

solid solutions of metals

p. 402

Solute-Solvent Solute-Solvent CombinationsCombinations

Chapter 12 Section 1 Types of Mixtures p. 401-406

8Type

s of

Sol

utio

ns Im

age

Type

s of

Sol

utio

ns Im

age

notes

Chapter 12 Section 1 Types of Mixtures p. 401-406

9p. 403

Gold and Gold Alloy ImageGold and Gold Alloy Image

Chapter 12 Section 1 Types of Mixtures p. 401-406

10

• Suspensions – particle settle out if not stirred constantly; large particle size

• Comparing solutions, colloids and suspensions on page 404

Mixtures That Are Not Mixtures That Are Not SolutionsSolutions

p. 404

Chapter 12 Section 1 Types of Mixtures p. 401-406

11

Colloids • Particle size between suspension &

soln.

Mixtures That Are Not Mixtures That Are Not SolutionsSolutions

COLLOIDAL DISPERSION

DISPERSED PHASEcornstarch

DISPERSING MEDIUM

water

Chapter 12 Section 1 Types of Mixtures p. 401-406

12

• Occurs when light is scattered by colloidal particles dispersed in a transparent medium

Tyndall EffectTyndall Effect

Chapter 12 Section 1 Types of Mixtures p. 401-406

13

• Foams and emulsions are types of colloids.

• Table on page 404.

p. 404

Classes of ColloidsClasses of Colloids

Chapter 12 Section 1 Types of Mixtures p. 401-406

14Emul

sion

Imag

eEm

ulsi

on Im

age notes

Chapter 12 Section 1 Types of Mixtures p. 401-406

15

• Electrolyte – a substance that dissolves in water to give a solution that conducts electric current– Ionic compounds and highly polar

molecules form electrolytes• Nonelectrolytes – a substance that

dissolves in water to give a solution that does not conduct electricity

Electrolytes & Electrolytes & NonelectrolytesNonelectrolytes

Chapter 12 Section 1 Types of Mixtures p. 401-406

16p. 406

Electric Conductivity in Electric Conductivity in SolutionsSolutions

Chapter 12 Section 1 Types of Mixtures p. 401-406

17

Ch 12 Sec 1 HomeworkCh 12 Sec 1 Homework

Section Review Page 406 # 1-6