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Chemistry
Form 3 2025
TERM II
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

Opening school and revision of end term exam

2 1
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
2 2-3
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.
To standardize a solution with an iron (II) salt.
Calculations & supervised practice.
Experiment and calculations.

Potassium Magnate
(VII)
K.L.B. BK III
PP. 74-75
K.L.B. BK III
PP. 74-75

Longhorn
Book III
PP 114-115
2 4
Volumetric Analysis.
Water of crystallization.
By the end of the lesson, the learner should be able to:
To determine amount of water of crystallization in ammonium iron sulphate crystals.
Teacher exposes the formula of water of crystallization.
Class experiment.
Filling in a table of results.
Ammonium
Iron (II)
Sulphate crystals.
Dilute sulphuric (VI) acid.
K.L.B. BK III
P. 76
2 5
Volumetric Analysis.
Formula mass of ammonium iron (II) sulphate.
By the end of the lesson, the learner should be able to:
To find formula mass of ammonium iron (II) sulphate.
Calculations from experimental results.
student book
K.L.B. BK III
PP. 76 -77
3 1
Volumetric Analysis.
Formula mass of a given salt.
Atomicity of gases.
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
3 2-3
Volumetric Analysis.
Mass and volume of gases.
Molar gas volume.
Combining volumes of gases.
By the end of the lesson, the learner should be able to:
To determine mass and volume of gases.
To define molar gas volume.
Teacher demonstration: - Determining mass of known volumes of oxygen / CO2.

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.
Lubricated syringes
Oxygen/
CO2.
student book
K.L.B. BK III
P. 81
Longhorn BK III
PP 126-127

K.L.B. BK III
79 ? 80
Longhorn
Book III
PP 126-127
3 4
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
3 5
ORGANIC CHEMISTRY (I)
Hydrocarbons.
By the end of the lesson, the learner should be able to:
To define organic Chemistry.
To define a hydrocarbon.
To identify groups of hydrocarbons.
To describe the carbon atom.
Discuss composition of the carbon atom; hence deduce number of valence electrons.
Exposition of new terms.
student book
K.L.B. BK III
P. 92
Longhorn
Book III
P 135
4 1
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
4 2-3
ORGANIC CHEMISTRY (I)
Naming Alkanes.
Members of Alkane series.
Isomerism in alkanes.
By the end of the lesson, the learner should be able to:
To identify various alkanes.
To define a homologous series.
To name members of alkane series and identify their characteristics.
To draw the structures of alkane series.
Discussion and exposition of new concepts.
student book
Chart- structure of alkanes.
Models.
K.L.B. BK III
PP. 94-98
Longhorn
Book III
PP 136-139

K.L.B. BK III
PP. 97-99

Longhorn Book III
PP 137-9
4 4
ORGANIC CHEMISTRY (I)
Laboratory preparation of a given alkane.
By the end of the lesson, the learner should be able to:
To describe laboratory preparation of a given alkane.
To state physical properties of the gases prepared.
Teacher demonstration.
Discussion.
Sodium ethanoate, sodalime,
Pestle and mortar.
K.L.B. BK III
P. 103

Longhorn
Book III
PP 146
4 5
ORGANIC CHEMISTRY (I)
Trend in physical properties of alkanes.
Chemical properties of alkanes.
By the end of the lesson, the learner should be able to:
To describe the trend in physical properties of alkanes.
Study a table of comparative properties of alkanes.
Make deductions from the table.
student book
K.L.B. BK III
P. 105

Longhorn
Book III
PP 148-9
5 1
ORGANIC CHEMISTRY (I)
Substitution reactions involving alkanes. Uses of alkanes.
By the end of the lesson, the learner should be able to:
To describe substitution reactions involving alkanes.

To list down uses of alkanes.
Discussion


Teacher elucidates uses of alkanes.
student book
K.L.B. BK III
P. 108

Longhorn
Book III
PP 149-50
5 2-3
ORGANIC CHEMISTRY (I)
Alkenes. Molecular formulae of alkenes.
Naming alkenes.
Alkene isomerism.
By the end of the lesson, the learner should be able to:
To write molecular formulae of alkenes.
Differentiate between branching and positional isomerism.
Examine table of members of alkenes.
To identify members of alkene series.
Discussion and drawing of molecular structures.
student book
K.L.B. BK III
PP 153-4
K.L.B. BK III
P. 113
Longhorn
Book III
PP 158-60
5 4
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
5 5
ORGANIC CHEMISTRY (I)
Chemical properties of ethene.
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
6 1
ORGANIC CHEMISTRY (I)
Alkenes and oxidizing agents.
By the end of the lesson, the learner should be able to:
To describe reactions of alkenes with oxidizing agents.
Review the double bonds in alkenes.
Review reduction process, oxidizing agent.
Discuss reactions of alkenes with conc. H2SO4, acidified potassium chromate.
Expose hydrolysis process.

charts

K.L.B. BK III
PP. 120-121


Longhorn
Book III
PP 166-8
6 2-3
ORGANIC CHEMISTRY (I)
Uses of alkenes & Topic review.
Alkynes. Nomenclature.
By the end of the lesson, the learner should be able to:
To list down uses of alkenes.
To identify various alkynes.
To name and draw structures of alkynes.
Teacher elucidates uses of alkenes.

Assignment.
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. 121 Longhorn Book
PP 170-1

K.L.B. BK III
P. 122-123
Longhorn
Book III
PP 126-129 171-5
6 4
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
6 5
ORGANIC CHEMISTRY (I)
Chemical properties of ethyne.
By the end of the lesson, the learner should be able to:
To describe combustion, halogenation and hydrogenation processes.
Discussion and writing of equations.
charts
K.L.B. BK III
PP. 127-129
Longhorn Book III
PP 180-184
7 1
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
7 2-3
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.
Describe lab preparation of nitrogen.
Discussion and description.
Drawing schematic diagram for the process.
Teacher demonstration:
Students? record observations made from tests on the gas.
Writing equations of reactions.
charts
Ammonium chloride, sodium nitrate
charts
K.L.B. BK III
PP.135-136

Longhorn Book
PP 188-9

K.L.B. BK III
P. 137

Longhorn
Book III
P 190-1
7 4
NITROGEN & ITS COMPOUNDS.
Nitrogen (I) oxide. Lab preparation.
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.
K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6
7 5
NITROGEN & ITS COMPOUNDS.
Nitrogen (I) oxide. Lab preparation.
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.
K.L.B. BK III
PP. 139-141

Longhorn
Book III
PP 195-6
8 1
NITROGEN & ITS COMPOUNDS.
Properties and uses of Nitrogen (I) oxide.
Nitrogen (II) oxide. Lab preparation.
By the end of the lesson, the learner should be able to:
To list down physical properties of nitrogen (I) oxide.
To describe chemical properties of nitrogen (I) oxide.
To list down uses of nitrogen (I) oxide.
Q/A: Deductions from tests carried out.
Discussion of chemical properties and writing of equations.

Teacher elucidates uses of nitrogen (1) oxide.
charts
Dil nitric acid, copper turnings.

K.L.B. BK III
P. 141
Longhorn
Book III
PP 191-2
8 2-3
NITROGEN & ITS COMPOUNDS.
Properties of the gas.
Nitrogen (1V) oxide Lab preparation.
Properties of Nitrogen (IV) oxide.
By the end of the lesson, the learner should be able to:
To list down physical properties of nitrogen (II) oxide
To describe chemical properties of nitrogen (11) oxide
To describe nitrogen (IV) oxide lab preparation.
Q/A: Deductions from tests carried out.
Discussion of chemical properties and writing of equations.
Carry out a confirmatory test for the presence of the gas.

Teacher demonstration: - Preparation of the gas and corresponding equation.
Tests on the gas and make observations.
charts
Conc. nitric acid, copper turnings.
charts
K.L.B.
BK III
P. 143

Longhorn
Book III
PP 192-200

K.L.B. BK III
PP. 144-145
8 4
NITROGEN & ITS COMPOUNDS.
Ammonia. Lab preparation of ammonia.
By the end of the lesson, the learner should be able to:
To describe lab preparation of ammonia
Q/A: Structure of ammonia.
Group experiments: Preparation of ammonia.
Tests on the gas.
Ca(OH)2, NH4Cl Solutions, CaO, litmus papers..M THREE CHEMISTRY TERM TWO 20....
K.L.B. BK III
PP. 147-148
8 5
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
9

Midterm break and exaM

10 1
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with metal ions.
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.

K.L.B.
BK III
PP. 152-153
10 2-3
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with metal ions.
Ionic equations of above reactions.
Burning ammonia in the air.
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.
To write iIonic equations of above reactions.
Teacher demonstration: - Preparation of aqueous solution of ammonia.

Class experiments: -
Students record observations when drops of aqueous ammonia are added, then in excess.
Discuss precipitation of metal hydroxides by aqueous ammonia.
Confirmatory tests for various concentrations.
2 cm Solutions containing various metal ions.
charts
Conc. Ammonium solution
Hot platinum rod
Oxygen.

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

K.L.B. BK III
P.154

Longhorn BK III
P 223
10 4
NITROGEN & ITS COMPOUNDS.
Reaction of ammonia with copper (II) Oxide.
By the end of the lesson, the learner should be able to:
To name products formed when ammonia reacts with hot CuCl2 solid.
To explain reducing properties of ammonia.
Teacher demonstration and discussion.
Write down equations for the reactions.
Granular CuCl2
Combustion tube,
Dry ammonia
U-tube
Gas jar.

K.L.B.
BK III
P. 158
10 5
NITROGEN & ITS COMPOUNDS.
Haber process.
Uses of ammonia.
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.
Discussion and explanations.
Chart- schematic diagram.
charts

K.L.B. BK III
PP. 159-160
225-226
11 1
NITROGEN & ITS COMPOUNDS.
Nitric acid. Lab preparation.
By the end of the lesson, the learner should be able to:
To describe lab preparation of nitric acid.
Teacher demonstration.
Write equations of reaction.
Discussion.
Retort stand
Conc. H2SO4
KNO3
K.L.B. BK III
P. 163
11 2-3
NITROGEN & ITS COMPOUNDS.
Nitric acid Industrial manufacture.
Reaction of dilute Nitric acid with metals.
By the end of the lesson, the learner should be able to:
To describe industrial manufacture of nitric acid.
To describe reaction of dilute nitric acid with metals.
To write equations of reactions of dilute nitric acid with metals.
Discussion and writing equations.
Class experiment:- making observations and recording them in a table.
Discuss the observations.
Write down equations for the reactions.
Chart
Schematic diagram.
Magnesium
Zinc
Copper
K.L.B. BK III
P. 164

K.L.B. BK III
PP. 165-166

Longhorn
Book III
PP 166-8
11 4
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
11 5
NITROGEN & ITS COMPOUNDS.
Dilute nitric acid and metal hydroxides and oxides.
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.
K.L.B. BK III
P. 168

Longhorn
Book III
PP 238-240
12 1
NITROGEN & ITS COMPOUNDS.
Reaction of nitric acid as an oxidizing agent.
By the end of the lesson, the learner should be able to:
Describe reactions of nitric acid as an oxidizing agent.
Class experiments: -
Explain observations made.
Nitric acid acidified iron sulphate, sulphur, and copper metal.
K.L.B. BK III
PP. 169-170

Longhorn Book III
PP 239 -240
12 2-3
NITROGEN & ITS COMPOUNDS.
Uses of nitric acid & nitrates.
Action of heat on nitrates.
By the end of the lesson, the learner should be able to:
To state uses of nitrates.
To describe preparation of nitrates.
To write equations of decomposition of nitrates on heating.
Discussion
Equations for the reactions for preparation of nitrates.
Discuss above observations.
Write relevant equations.
charts
K.L.B. BK III
P. 171

Longhorn Book III
PP 240
K.L.B. BK III
P 172
12 4
NITROGEN & ITS COMPOUNDS.
Test for nitrates.
By the end of the lesson, the learner should be able to:
To carry out tests on nitrates.
Class experiments.
Make observations and deductions.
Discuss the brown ring test for nitrates.
charts
K.L.B. BK III
PP 173-174

Longhorn
Book III
PP 243
12 5
NITROGEN & ITS COMPOUNDS.
Nitrogen compounds and the environment.
By the end of the lesson, the learner should be able to:
To explain the pollution of nitrogen compounds in the environment.
To state ways of reducing environmental pollution by nitrogen compounds.
Brief guided discussion.
charts
K.L.B.BK III
PP. 173-174

Longhorn
Book III
PP 244-6
13-14

End term exams and closing


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