THE MOLE

Mole, molar mass and R.A.M.

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.

Discuss various analogies that lead to the definition of the mole.
Expose the meaning of R.A.M., Avogadro?s constant and molar mass.

Chart- table of molar masses of elements.

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

THE MOLE

Number of moles in a substance.

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

Worked examples.
Supervised practice.

student book

K.L.B .BK III
P. 34
Longhorn
BK III
PP 39-40

THE MOLE

Relative molecular mass & Relative formula mass.
Moles and Avogadro?s number.
Empirical Formula.

By the end of the lesson, the learner should be able to:
Define relative molecular mass.
Calculate RMM of a compound.

Q/A: - Review formulae of compounds.
Complete a table of compounds and their molecular / formula mass.

Calculators.
student book

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

Longhorn Book III PP 44-60

THE MOLE

Molecular formula.
Concentration of a solution.
Molarity of a solution.
Preparation of molar solutions.

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.

Define molarity of a solution.
Find molarity of a solution in M/dm?

Worked examples.

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

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

K.L.B.BK III
P. 45

Longhorn
Book III
PP 73-75

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

Longhorn
Book III
PP 76-81

THE MOLE

Calculators on molar solutions.
Dilution of solutions.
Stoichiometry of a chemical reaction.

By the end of the lesson, the learner should be able to:
Solve numerical calculations on molar solutions.
Problems on molar solutions.

Worked examples.
Supervised exercise.
Assignment.

student book
CuSO4 solution and iron metal.

K.L.B. BK III
P 51
Longhorn Book III PP 76-81

THE MOLE
THE MOLE
Volumetric Analysis.
Volumetric Analysis.

Stoichiometric equations.
Stoichiometric equations of various reactions.
Apparatus used in titration experiments.
Titration process.

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

To write stoichiometric equations of the above reactions.
Class experiments.

Problem solving.

student book
student book
Pipettes
Burettes.
Indicators
Suitable acid and base.

K.L.B. BK III
Longhorn Book III PP 14-16
PP. 88-93
K.L.B. BK III
P. 62

Volumetric Analysis.

Titration experiment (Neutralization reaction)
Titration experiment (Neutralization reaction)

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

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

student book
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.
Redox Titration Reactions.

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

Calculations & supervised practice.

Potassium Magnate
(VII)

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

Volumetric Analysis.

Water of crystallization.
Formula mass of ammonium iron (II) sulphate.
Formula mass of a given salt.
Atomicity of gases.
Mass and volume of gases.

By the end of the lesson, the learner should be able to:
To determine amount of water of crystallization in ammonium iron sulphate crystals.
To solve numerical problems involving water of crystallization.

Teacher exposes the formula of water of crystallization.
Class experiment.
Filling in a table of results.
Problem solving from sample results.

Ammonium
Iron (II)
Sulphate crystals.
Dilute sulphuric (VI) acid.
student book
student book
Lubricated syringes
Oxygen/
CO2.

K.L.B. BK III
P. 76
K.L.B. BK III
P.77

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.
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.

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

ORGANIC CHEMISTRY (I)

Alkanes.
Naming Alkanes.
Members of Alkane series.

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.
student book
Chart- structure of alkanes.

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

Longhorn
Book III
PP 135-6

ORGANIC CHEMISTRY (I)

Isomerism in alkanes.
Laboratory preparation of a given alkane.
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 draw and name isomers of simple hydrocarbons.
To describe the trend in physical properties of alkanes.

Discussion and exposition of new concepts.
Study a table of comparative properties of alkanes.
Make deductions from the table.

Models.
Sodium ethanoate, sodalime,
Pestle and mortar.
student book

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

K.L.B. BK III
P. 105

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.
Preparing ethene in the lab.
Physical properties of ethene.

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
chart

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

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.

Discussion and drawing structures.

charts

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

ORGANIC CHEMISTRY (I)

Alkynes. Nomenclature.
Isomerism in alkynes.
Physical properties of ethyne.
Chemical properties of ethyne.

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

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

Discussion and drawing structures.

charts

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

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

ORGANIC CHEMISTRY (I)
NITROGEN & ITS COMPOUNDS.

Tests for alkynes. Uses of alkynes.
Isolation of nitrogen from air.

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

Discussion and explanations.

Assignment.

charts
Aspirator, copper turnings, gas jar, combustion tube, trogh.

K.L.B. BK III
P.130

Longhorn Book III
PP 180-84

NITROGEN & ITS COMPOUNDS.

Industrial production of nitrogen.
Lab. preparation of nitrogen.
Physical and chemical properties of nitrogen. Uses of nitrogen.

By the end of the lesson, the learner should be able to:
Describe industrial production of nitrogen.

Discussion and description.
Drawing schematic diagram for the process.

charts
Ammonium chloride, sodium nitrate

K.L.B. BK III
PP.135-136

Longhorn Book
PP 188-9

NITROGEN & ITS COMPOUNDS.

Nitrogen (I) oxide. Lab preparation.
Properties and uses of Nitrogen (I) oxide.

By the end of the lesson, the learner should be able to:
To describe Nitrogen (I) oxide.

Teacher demonstration: -
Carry out tests on the gas.
Students record observations in a table.
Guided discussion.

Ammonium nitrate.
charts

K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6

NITROGEN & ITS COMPOUNDS.

Nitrogen (II) oxide. Lab preparation.
Properties of the gas.
Nitrogen (1V) oxide Lab preparation.
Properties of Nitrogen (IV) oxide.
Ammonia. Lab preparation of ammonia.

By the end of the lesson, the learner should be able to:
To describe lab preparation of nitrogen (II) oxide.
To describe nitrogen (IV) oxide lab preparation.

Class experiment: Preparation and carrying out tests on the gas.
Observations recorded in a table.

Teacher demonstration: - Preparation of the gas and corresponding equation.
Tests on the gas and make observations.

Dil nitric acid, copper turnings.
charts
Conc. nitric acid, copper turnings.
charts
Ca(OH)2, NH4Cl Solutions, CaO, litmus papers..M THREE CHEMISTRY TERM TWO 20....

K.L.B. BK III
P. 142
Longhorn
Book III
PP 200-1

K.L.B. BK III
PP. 144-145

NITROGEN & ITS COMPOUNDS.

Properties of ammonia.
Solubility of ammonia.

By the end of the lesson, the learner should be able to:
To list down physical properties of ammonia.

Deduce physical properties from the observations above.
Discuss chemical properties from the observations above.
Write down chemical equations.

charts

K.L.B. BK III
P. 150

NITROGEN & ITS COMPOUNDS.

Reaction of ammonia with metal ions.
Ionic equations of above reactions.

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


To carry out tests of aqueous ammonia on metal ions.

Teacher demonstration: - Preparation of aqueous solution of ammonia.

Class experiments: -
Students record observations when drops of aqueous ammonia are added, then in excess.

2 cm Solutions containing various metal ions.
charts

K.L.B.
BK III
PP. 152-153

NITROGEN & ITS COMPOUNDS.

Burning ammonia in the air.
Reaction of ammonia with copper (II) Oxide.

By the end of the lesson, the learner should be able to:
To describe burning ammonia in the air.

Teacher demonstration
Discussion
Chemical equations of reactions.

Conc. Ammonium solution
Hot platinum rod
Oxygen.
Granular CuCl2
Combustion tube,
Dry ammonia
U-tube
Gas jar.

K.L.B.
BK III
P. 158
Longhorn
Book III
PP 219

NITROGEN & ITS COMPOUNDS.

Haber process.
Uses of ammonia.
Nitric acid. Lab preparation.
Nitric acid Industrial manufacture.
Reaction of dilute Nitric acid with metals.

By the end of the lesson, the learner should be able to:
Identify raw materials for Haber process and how they are obtained in large scale.
Discuss the Haber process.
Represent Haber process in a schematic diagram.

To describe industrial manufacture of nitric acid.

Discussion and explanations.
Discussion and writing equations.

Chart- schematic diagram.
charts
Retort stand
Conc. H2SO4
KNO3
Chart
Schematic diagram.
Magnesium
Zinc
Copper

K.L.B. BK III
PP. 159-160
225-226
K.L.B. BK III
P. 164

NITROGEN & ITS COMPOUNDS.

Nitric acid and carbonates.
Reaction of dil. nitric acid with hydrogen carbonates.

By the end of the lesson, the learner should be able to:
To describe action of nitric acid on carbonates and hydrogen carbonates.

Group experiments: - Action of Nitric acid on hydrogen carbonates.

Solutions of
Na2CO3
NaHCO3
ZnCO3
CuCO3

K.L.B. BK III
P. 167

Longhorn
Book III
229-30

NITROGEN & ITS COMPOUNDS.

Dilute nitric acid and metal hydroxides and oxides.
Reaction of nitric acid as an oxidizing agent.

By the end of the lesson, the learner should be able to:
Predict results of reacting dilute nitric acid with metal hydroxides and oxides.

Group experiments & writing equations for the reactions.

Metal hydroxides.
Nitric acid acidified iron sulphate, sulphur, and copper metal.

K.L.B. BK III
P. 168

Longhorn
Book III
PP 238-240

NITROGEN & ITS COMPOUNDS.

Uses of nitric acid & nitrates.
Action of heat on nitrates.
Test for nitrates.
Nitrogen compounds and the environment.

By the end of the lesson, the learner should be able to:
To state uses of nitrates.
To describe preparation of nitrates.
To carry out tests on nitrates.

Discussion
Equations for the reactions for preparation of nitrates.
Class experiments.
Make observations and deductions.
Discuss the brown ring test for nitrates.

charts

K.L.B. BK III
P. 171

Longhorn Book III
PP 240
K.L.B. BK III
PP 173-174

Longhorn
Book III
PP 243

SULPHUR AND ITS COMPOUNDS

Extraction of sulphur.
Allotropes of sulphur.
Physical properties of sulphur. Heating of sulphur.

By the end of the lesson, the learner should be able to:

To describe extraction of sulphur by Frasch process.

Illustrate and discuss extraction of sulphur.

Chart-the Frasch process.
video
charts

K.L.B. BK III
PP.180-181
Longhorn
Book III
PP 126-129

SULPHUR AND ITS COMPOUNDS

Chemical properties of sulphur.

By the end of the lesson, the learner should be able to:
To investigate and describe chemical properties of sulphur.

Group experiments.
Discuss observations.
Write corresponding equations.

charts

K.L.B.BK III
PP.188-190
Longhorn
Book III
PP 256-8

SULPHUR AND ITS COMPOUNDS

Uses of sulphur. Sulphur dioxide.
Physical properties of sulphur dioxide.

By the end of the lesson, the learner should be able to:
State uses of sulphur.
Describe lab. preparation of sulphur dioxide.

Teacher elucidates uses of sulphur.
Teacher demonstration:-
Preparation of sulphur dioxide in a fume chamber/in the open.
Carrying out tests on the gas.

charts
text book

K.L.B.BK III
PP 191- 192
Longhorn Book
P 258