GAS LAWS

Boyle?s law.
Boyle?s law: - Equation and graphical representation.
Boyle?s law: Numerical questions.
Boyle?s law: Interpretation of graphs.
Charles? law.

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


State Boyle?s law.
Explain Boyle?s law using kinetic theory of matter.

Teacher demonstration ? Use syringes / pumps to show variation of volume with pressure.
Teacher asks probing questions leading to statement of the law.
Discuss the cause of build-up-in pressure.

Chart
Volume-pressure relationship.
Syringes.
chart
Calculators.
Graph papers.
Coloured water,
Glass tube,
Warm water,
Cork and
Flask.

K.L.B. BK III
PP. 1-2

Longhorn Book III
PP 1 -2

GAS LAWS
THE MOLE
THE MOLE
THE MOLE
THE MOLE
THE MOLE
THE MOLE
Volumetric Analysis.
Volumetric Analysis.
Volumetric Analysis.

Temperature in Degree Celsius and Kelvin. Equation and graphs from Charles? law.
Charles? law- equation and graphical representation.
Numerical questions on Charles? Law.
Combined Gas Law.
Standard conditions, S.T.P. conditions and R.T.P. conditions.
Diffusion.
Rates of diffusion.
Graham?s Law.
Mole, molar mass and R.A.M.
Number of moles in a substance.
Relative molecular mass & Relative formula mass.
Moles and Avogadro?s number.
Empirical Formula.
Molecular formula.
Concentration of a solution.
Molarity of a solution.
Preparation of molar solutions.
Calculators on molar solutions.
Dilution of solutions.
Stoichiometry of a chemical reaction.
Stoichiometric equations.
Stoichiometric equations of various reactions.
Apparatus used in titration experiments.
Titration process.
Titration experiment (Neutralization reaction)

By the end of the lesson, the learner should be able to:
Convert temperature in degree Celsius to Kelvin and vice-versa.
Define molecular formula of a compound.
Find molecular formula given percentage composition of a compound by mass.

Teacher explains inter-conversion of the units.
Students complete a table of temperature in the two units.
Worked examples.

Supervised practice.

student book
Calculators.
KMnO4 crystals,
Litmus papers.
Calculators
Chart- table of molar masses of elements.
Calculators.
chart
student book
Volumetric flasks, teat droppers/wash bottle.
Sodium hydrogen pellets.
Weighing balance.
CuSO4 solution and iron metal.
Pipettes
Burettes.
Indicators
Suitable acid and base.

K.L.B.
BK III P. 10

Longhorn Book III P 11

K.L.B.BK III
P. 45

Longhorn
Book III
PP 73-75

Volumetric Analysis.

Titration experiment (Neutralization reaction)
Basicity of an acid.
Standardization of HCl.
Concentration of HCl.
Redox Titration Reactions.
Water of crystallization.
Formula mass of ammonium iron (II) sulphate.
Formula mass of a given salt.
Atomicity of gases.
Mass and volume of gases.
Molar gas volume.
Combining volumes of gases.
Gay Lussac?s Law.

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

Step-by-step calculations.

Calculators.
student book
Dilute HCl, Na2CO3 solutions.
Potassium Magnate
(VII)
Ammonium
Iron (II)
Sulphate crystals.
Dilute sulphuric (VI) acid.
Lubricated syringes
Oxygen/
CO2.

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

ORGANIC CHEMISTRY (I)

Hydrocarbons.
Alkanes.
Naming Alkanes.
Members of Alkane series.
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.
Alkenes. Molecular formulae of alkenes.
Naming alkenes.
Alkene isomerism.
Preparing ethene in the lab.
Physical properties of ethene.
Chemical properties of ethene.
Alkenes and oxidizing agents.
Uses of alkenes & Topic review.
Alkynes. Nomenclature.
Isomerism in alkynes.
Physical properties of ethyne.
Chemical properties of ethyne.
Tests for alkynes. Uses of alkynes.

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
Chart of biomass digester.
Chart- structure of alkanes.
Models.
Sodium ethanoate, sodalime,
Pestle and mortar.
chart
charts

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