THE MOLE

Mole, molar mass and R.A.M.
Number of moles in a substance.
Relative molecular mass & Relative formula mass.

By the end of the lesson, the learner should be able to:
Define the term mole as a quantity of measurement.
Relate the mole to R.A.M and molar mass.
Define relative molecular mass.
Calculate RMM of a compound.

Discuss various analogies that lead to the definition of the mole.
Expose the meaning of R.A.M., Avogadro?s constant and molar mass.
Q/A: - Review formulae of compounds.
Complete a table of compounds and their molecular / formula mass.

Chart- table of molar masses of elements.
student book
Calculators.

K.L.B. BK III
PP. 27-31
Longhorn
Book III
PP 34-35

K.L.B.BK III
PP. 34-35

Longhorn Book III PP 44-60

THE MOLE

Moles and Avogadro?s number.

By the end of the lesson, the learner should be able to:
Calculate number of particles in a given number of moles.

Review standard form of numbers.
Worked examples.
Supervised exercise.

Calculators.

K.L.B.BK III
PP. 3132
Longhorn
Book III
PP 30-31

THE MOLE

Empirical Formula.

By the end of the lesson, the learner should be able to:
Determine empirical formula of a compound given percentage composition by mass.

Worked examples.
Supervised practice.

Assignment.

student book

K.L.B.
BK III P. 43

Longhorn Book III PP 66-71

THE MOLE

Molecular formula.
Concentration of a solution.

By the end of the lesson, the learner should be able to:
Define molecular formula of a compound.
Find molecular formula given percentage composition of a compound by mass.

Worked examples.

Supervised practice.

Calculators.
chart

K.L.B.BK III
P. 45

Longhorn
Book III
PP 73-75

THE MOLE

Molarity of a solution.
Preparation of molar solutions.
Calculators on molar solutions.

By the end of the lesson, the learner should be able to:
Define molarity of a solution.
Find molarity of a solution in M/dm?
Define molar solutions.
Prepare molar solutions.

Teacher explains that molarity of a solution is given in moles of the solute per litre.
Worked examples.
Supervised exercise.

Q/A: - Description of preparation of molar solutions.

student book
Volumetric flasks, teat droppers/wash bottle.
Sodium hydrogen pellets.
Weighing balance.
student book

K.L.B. BK III
PP. 48-49

Longhorn
Book III
PP 76-81

K.L.B. BK III
PP. 50-51

Longhorn
Book III
PP 78-81

THE MOLE

Dilution of solutions.
Stoichiometry of a chemical reaction.

By the end of the lesson, the learner should be able to:
Calculate molarity of a solution after dilution.

Group experiments.
Calculations.

student book
CuSO4 solution and iron metal.

K.L.B. BK III
PP. 76-81

THE MOLE

Stoichiometric equations.

By the end of the lesson, the learner should be able to:
To define a stoichiometric equation.

To write stoichiometric equations of the above reactions.

student book

K.L.B. BK III
Longhorn Book III PP 14-16
PP. 88-93

THE MOLE

Stoichiometric equations of various reactions.

By the end of the lesson, the learner should be able to:
To investigate and determine Stoichiometric equations of various reactions.

Class experiments.

Problem solving.

student book

K.L.B. BK III
P. 62

Volumetric Analysis.

Apparatus used in titration experiments.
Titration process.
Titration experiment (Neutralization reaction)

By the end of the lesson, the learner should be able to:
To use and read a pipette and a burette.
To carry out a titration experiment and obtain accurate results.

Discussion and practical use of the apparatus.
Emphasis is laid on need to sterilize the apparatus after use.

Class experiments: - To neutralize HCl with NaOH solution.
Fill in a table of results.
Find the average base used.

Pipettes
Burettes.
Indicators
Suitable acid and base.
student book

K.L.B. BK III
PP. 63-64
Longhorn
Book III
PP 104-8

K.L.B. BK III
P. 66

Longhorn Book III PP 108-114

Volumetric Analysis.

Titration experiment (Neutralization reaction)

By the end of the lesson, the learner should be able to:
To carry out calculations from experimental results.

Step-by-step calculations.

Calculators.

K.L.B. BK III
P 66
Longhorn Book III PP 108-114

Volumetric Analysis.

Basicity of an acid.
Standardization of HCl.

By the end of the lesson, the learner should be able to:
To define basicity of an acid.

Complete a table of number of replaceable hydrogen ions of an acid; hence define basicity of an acid.
Write corresponding ionic equations.

student book
Dilute HCl, Na2CO3 solutions.

K.L.B. BK III
P. 73

Volumetric Analysis.

Concentration of HCl.

By the end of the lesson, the learner should be able to:
To calculate concentration of HCl from experimental results.

Calculations & supervised practice.

K.L.B. BK III
PP. 74-75

Volumetric Analysis.

Redox Titration Reactions.
Water of crystallization.
Formula mass of ammonium iron (II) sulphate.

By the end of the lesson, the learner should be able to:
To standardize a solution with an iron (II) salt.
To determine amount of water of crystallization in ammonium iron sulphate crystals.

Experiment and calculations.
Teacher exposes the formula of water of crystallization.
Class experiment.
Filling in a table of results.

Potassium Magnate
(VII)
Ammonium
Iron (II)
Sulphate crystals.
Dilute sulphuric (VI) acid.
student book

K.L.B. BK III
PP. 74-75

Longhorn
Book III
PP 114-115

K.L.B. BK III
P. 76

Volumetric Analysis.

Formula mass of a given salt.

By the end of the lesson, the learner should be able to:
To solve numerical problems involving water of crystallization.

Problem solving from sample results.

student book

K.L.B. BK III
P.77

Volumetric Analysis.

Atomicity of gases.
Mass and volume of gases.

By the end of the lesson, the learner should be able to:
To define atomicity of gases.

Review by Q/A atoms and molecules; hence the definition.
Discuss a table of gases and their atomicity.

student book
Lubricated syringes
Oxygen/
CO2.

K.L.B. BK III
PP. 78 -80
Longhorn BK III PP 126-128

Volumetric Analysis.

Molar gas volume.
Combining volumes of gases.

By the end of the lesson, the learner should be able to:
To define molar gas volume.

Use the above results to describe volume of one mole of a gas.
Discuss molar gas volume at R.T.P and S.T.P conditions.

student book

K.L.B. BK III
79 ? 80
Longhorn
Book III
PP 126-127

Volumetric Analysis.

Gay Lussac?s Law.

By the end of the lesson, the learner should be able to:
To state Gay Lussac?s Law.
To compare Gay Lussac?s Law with Avogadro?s Law.
To solve numericals using Gay Lussac?s Law.

Teacher exposes the law; and compares it with Gay Lussac?s Law.
Worked examples.
Supervised practice.

student book

K.L.B. BK III
P. 85

Longhorn
Book III
PP 129-131

Volumetric Analysis.
ORGANIC CHEMISTRY (I)

Gay Lussac?s Law.
Hydrocarbons.

By the end of the lesson, the learner should be able to:
To state Gay Lussac?s Law.
To compare Gay Lussac?s Law with Avogadro?s Law.
To solve numericals using Gay Lussac?s Law.
To define organic Chemistry.
To define a hydrocarbon.
To identify groups of hydrocarbons.
To describe the carbon atom.

Teacher exposes the law; and compares it with Gay Lussac?s Law.
Worked examples.
Supervised practice.
Discuss composition of the carbon atom; hence deduce number of valence electrons.
Exposition of new terms.

student book

K.L.B. BK III
P. 85

Longhorn
Book III
PP 129-131

K.L.B. BK III
P. 92
Longhorn
Book III
P 135

ORGANIC CHEMISTRY (I)

Alkanes.

By the end of the lesson, the learner should be able to:
To identify various alkanes.
To list sources of alkanes.
To state uses of different fractions of crude oil.
To define cracking of alkanes.

Expose various alkanes.
Discuss the biomass digester, fractional distillation of crude oil and uses of the fractions.
Discuss the cracking process.

Chart of biomass digester.

K.L.B. BK III
PP. 93-94

Longhorn
Book III
PP 135-6

ORGANIC CHEMISTRY (I)

Naming Alkanes.
Members of Alkane series.

By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.

Discussion and exposition of new concepts.

student book
Chart- structure of alkanes.

K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139

ORGANIC CHEMISTRY (I)

Isomerism in alkanes.
Laboratory preparation of a given alkane.

By the end of the lesson, the learner should be able to:
To draw and name isomers of simple hydrocarbons.

Discussion and exposition of new concepts.

Models.
Sodium ethanoate, sodalime,
Pestle and mortar.

K.L.B. BK III
PP. 101-102 Longhorn Book III
PP 141-2

ORGANIC CHEMISTRY (I)

Trend in physical properties of alkanes.
Chemical properties of alkanes.
Substitution reactions involving alkanes. Uses of alkanes.

By the end of the lesson, the learner should be able to:
To describe the trend in physical properties of alkanes.
Describe chemical properties of alkanes.

Study a table of comparative properties of alkanes.
Make deductions from the table.
Discussion
Examples of balanced equations.

student book

K.L.B. BK III
P. 105

Longhorn
Book III
PP 148-9

K.L.B. BK III
P. 107
Longhorn
Book III
PP 148-9

ORGANIC CHEMISTRY (I)

Alkenes. Molecular formulae of alkenes.
Naming alkenes.

By the end of the lesson, the learner should be able to:
To write molecular formulae of alkenes.

Examine table of members of alkenes.
To identify members of alkene series.

student book

K.L.B. BK III
PP 153-4

ORGANIC CHEMISTRY (I)

Alkene isomerism.

By the end of the lesson, the learner should be able to:
Differentiate between branching and positional isomerism.

Discussion and drawing of molecular structures.

student book

K.L.B. BK III
P. 113
Longhorn
Book III
PP 158-60

ORGANIC CHEMISTRY (I)

Preparing ethene in the lab.
Physical properties of ethene.

By the end of the lesson, the learner should be able to:
To describe lab preparation of ethene.

Teacher demonstration: - Carry out tests on ethene as students note down the observations in a table.

chart
student book

K.L.B. BK III
P 162

ORGANIC CHEMISTRY (I)

Chemical properties of ethene.
Alkenes and oxidizing agents.
Uses of alkenes & Topic review.

By the end of the lesson, the learner should be able to:
To explain halogenation and hydrogenation reactions.

To list down uses of alkenes.

Discussion and drawing structures.
Teacher elucidates uses of alkenes.

Assignment.

charts

KLB BK III
PP. 118-119
Longhorn
Book III
PP 166-8

K.L.B. BK III
P. 121 Longhorn Book
PP 170-1

ORGANIC CHEMISTRY (I)

Alkynes. Nomenclature.

By the end of the lesson, the learner should be able to:
To identify various alkynes.
To name and draw structures of alkynes.

Discuss a table of members of alkynes.
Review naming of alkanes and alkene and compare this with naming of alkynes.

charts

K.L.B. BK III
P. 122-123
Longhorn
Book III
PP 126-129 171-5

ORGANIC CHEMISTRY (I)

Isomerism in alkynes.
Physical properties of ethyne.

By the end of the lesson, the learner should be able to:
To draw structure showing positional and branching isomerism.

Discussion and drawing structures.

charts

K.L.B. BK III
PP. 124-125
Longhorn
Book III
PP 176-8

ORGANIC CHEMISTRY (I)
ORGANIC CHEMISTRY (I)
CHLORINE & ITS COMPOUNDS

Chemical properties of ethyne.
Tests for alkynes. Uses of alkynes.
Lab. preparation of chlorine gas.

By the end of the lesson, the learner should be able to:
To describe combustion, halogenation and hydrogenation processes.
To describe tests for alkynes and state uses of alkynes.

Discussion and writing of equations.
Discussion and explanations.

Assignment.

charts
charts
Conc. HCl, Manganese (IV) oxide.

K.L.B. BK III
PP. 127-129
Longhorn Book III
PP 180-184

K.L.B. BK III
P.130

Longhorn Book III
PP 180-84

CHLORINE & ITS COMPOUNDS

Physical properties of chlorine.
Chemical properties of chlorine ? reaction with water.

By the end of the lesson, the learner should be able to:
State physical properties of chlorine.

Q/A: Relate the properties to the method of collection of the gas.
Write equations for the reaction leading to formation of chlorine.

charts
Moist blue litmus papers.

K.L.B.BK III
P. 220.
Longhorn
Book III
P 301

CHLORINE & ITS COMPOUNDS

Chemical properties of chlorine - Reaction with metals - Reaction with non-metals.

By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with metals / non-metals.

Teacher demonstration:
Discussion.
Writing chemical equations.

textbook

K.L.B.BK III
PP.
224 -225
Longhorn
Book III
PP 303-5

CHLORINE & ITS COMPOUNDS

Chemical properties of chlorine - Reaction with metals - Reaction with non-metals.

By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with metals / non-metals.

Teacher demonstration:
Discussion.
Writing chemical equations.

textbook

K.L.B.BK III
PP.
224 -225
Longhorn
Book III
PP 303-5

CHLORINE & ITS COMPOUNDS

- Oxidizing properties of chlorine.
Chlorine and alkalis.
Test for chlorides.

By the end of the lesson, the learner should be able to:
To investigate and explain reaction of chlorine with reducing a gents.
To carry out tests for chlorides.

Group experiments.
Discuss and explain observations made.
Write corresponding chemical equations.
Class expts.
Discuss observations, results.
Write chemical equations for the reactions.

Expt. Worksheets.
Cold / hot NaOH solutions.
Expt. Worksheets.
Zinc chloride, litmus paper, conc. Sulphuric acid.

K.L.B. BK III
PP. 226 -227
Longhorn Book
PP 307-8

K.L.B.BK III
P. 230
Longhorn Book III
PP 318-319

CHLORINE & ITS COMPOUNDS

Uses of chlorine gas.

By the end of the lesson, the learner should be able to:
To state uses of chlorine.

Teacher elucidates uses of chlorine.

K.L.B.BK III
P. 231
Longhorn Book III
PP 320

CHLORINE & ITS COMPOUNDS

Hydrogen chloride gas. Lab. prep. Physical properties.

By the end of the lesson, the learner should be able to:
To describe Lab. prep of hydrogen chloride gas.
To investigate and state physical properties of hydrogen chloride gas.

Teacher demonstration.
Carry out tests on the gas and deduce the properties of the gas.

Sodium chloride crystals, conc H2SO4

K.L.B.BK III
P. 232
Longhorn
Book III
PP 323-4

CHLORINE & ITS COMPOUNDS

Aqueous hydrogen chloride.

By the end of the lesson, the learner should be able to:
To prepare aqueous hydrogen chloride.

Class experiment leading to deduction of chemical properties of hydrogen chloride gas.

Distilled water.

K.L.B.BK III
P. 234

CHLORINE & ITS COMPOUNDS

Further chemical properties of hydrogen chloride gas.
Large-scale production of hydrochloric acid.
Uses of hydrochloric acid.

By the end of the lesson, the learner should be able to:
To determine chemical properties of hydrogen chloride gas.
To carry out confirmatory test for hydrogen chloride gas.

Identify raw materials for manufacture of hydrochloric acid in large scale.
Describe the manufacturing process.

Class experiment leading to deduction of further chemical properties of hydrogen chloride gas / confirmatory test for hydrogen chloride gas.

Discussion and giving relevant equations.

Ammonia solution.
charts

K.L.B. BK III
PP.
235 -223
Longhorn
Book III
PP 327-331

K.L.B.BK III
P. 237
Longhorn Book III
P 330

CHLORINE & ITS COMPOUNDS

Effects of hydrochloric acid on the environment.

By the end of the lesson, the learner should be able to:
To explain effects of hydrochloric acid on the environment.

Discussion and explanation.
Assignment.

charts

K.L.B. BK III
P 238.
Longhorn Book III
PP 334-8