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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 | 2-3 |
GAS LAWS
|
Boyle?s law.
Boyle?s law: - Equation and graphical representation. |
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. Represent Boyle?s law mathematically and graphically. |
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. Q/A: relation between volume and pressure mathematically and graphically. Derive the relation P1V1=P2V2, and sketch graphs to illustrate Boyle?s law. Worked examples. Assignment. |
Chart
Volume-pressure relationship. Syringes. |
K.L.B. BK III
PP. 1-2 Longhorn Book III PP 1 -2 K.L.B. BK III PP. 3-4 Longhorn Book III PP 3-5 |
|
| 1 | 4 |
GAS LAWS
|
Boyle?s law:
Numerical questions.
|
By the end of the
lesson, the learner
should be able to:
Solve further problems involving Boyle?s law. |
Supervised exercise: Volume in cm?, m?, litres, and pressure in Pa, mmHg, cmHg, atmospheres.
Assignment. |
Calculators.
|
K.L.B. BK III
PP. 4-5 Longhorn Book III PP 6-8 |
|
| 1 | 5 |
GAS LAWS
|
Boyle?s law:
Numerical questions.
|
By the end of the
lesson, the learner
should be able to:
Solve further problems involving Boyle?s law. |
Supervised exercise: Volume in cm?, m?, litres, and pressure in Pa, mmHg, cmHg, atmospheres.
Assignment. |
Calculators.
|
K.L.B. BK III
PP. 4-5 Longhorn Book III PP 6-8 |
|
| 2 | 1 |
GAS LAWS
|
Boyle?s law:
Interpretation of graphs.
|
By the end of the
lesson, the learner
should be able to:
Plot and intepret graphs involving pressure and volume of gases. |
Completing tables and plotting graphs.
Interpret the plotted graphs. Make deductions from the graphs. |
Graph papers.
|
K.L.B.
BK III PP. 4-5 |
|
| 2 | 2-3 |
GAS LAWS
|
Charles? law.
Temperature in Degree Celsius and Kelvin. Equation and graphs from Charles? law. |
By the end of the
lesson, the learner
should be able to:
State Charles? law. Explain Charles? law using kinetic theory of matter. Convert temperature in degree Celsius to Kelvin and vice-versa. |
Teacher demonstration:- To show expansion of air when heated and contraction when pressure is constant.
Explain increase in volume when temperature is raised. Q/A: - relation between volume and temperature, leading to Charles? law. Teacher explains inter-conversion of the units. Students complete a table of temperature in the two units. |
Coloured water,
Glass tube, Warm water, Cork and Flask. student book |
.K.L.B.
BK III P. 6 Longhorn Book III PP 9-11 K.L.B. BK III P. 10 Longhorn Book III P 11 |
|
| 2 | 4 |
GAS LAWS
|
Temperature in Degree Celsius and Kelvin.
Equation and graphs from Charles? law.
|
By the end of the
lesson, the learner
should be able to:
Convert temperature in degree Celsius to Kelvin and vice-versa. |
Teacher explains inter-conversion of the units.
Students complete a table of temperature in the two units. |
student book
|
K.L.B.
BK III P. 10 Longhorn Book III P 11 |
|
| 2 | 5 |
GAS LAWS
|
Charles? law- equation and graphical representation.
|
By the end of the
lesson, the learner
should be able to:
Express Charles? law with equations. Give a graphical representation of Charles? law. |
Derive equations from volume and temperature relationship.
Exposition: - Teacher exposes a volume-temperature graph and extrapolates it to obtain the absolute temperature. The definition of absolute temperature is exposed. |
student book
|
K.L.B. BK III PP. 6-7 Longhorn Book III P 10 |
|
| 3 | 1 |
GAS LAWS
|
Numerical questions on Charles? Law.
|
By the end of the
lesson, the learner
should be able to:
Solve numerical problems based on Charles? Law. |
Worked examples.
Supervised exercise. Assignment. |
Calculators.
|
K.L.B.
BK III P. 12 Longhorn Book III PP 12-14 |
|
| 3 | 2-3 |
GAS LAWS
|
Combined Gas Law.
Standard conditions, S.T.P. conditions and R.T.P. conditions. |
By the end of the
lesson, the learner
should be able to:
Derive the Gas Law. Derive the combined gas law equation. Solve numerical problems using the equation. State standard conditions of temperature and pressure of an ideal gas. State room temperature and pressure of a gas. Use standard conditions in problem solving. |
Q/A: - Combining Boyle?s and Charles? Laws.
Worked examples. Exposition of s.t.p. and r.t.p. Problem solving. |
Calculators.
student book |
K.L.B.
BK III P. 12 Longhorn Book III PP 14-16 K.L.B. BK III P. 14 |
|
| 3 | 4 |
GAS LAWS
|
Diffusion.
|
By the end of the
lesson, the learner
should be able to:
Define diffusion. Describe experiments to show diffusion. |
Group experiments. Diffusion of KMnO4 crystals, concentrated ammonia solution. |
KMnO4 crystals, Litmus papers. |
K.L.B. BK III PP. 14-15 Longhorn Book III P 19 |
|
| 3 | 5 |
GAS LAWS
|
Rates of diffusion.
|
By the end of the
lesson, the learner
should be able to:
Compare rates of diffusion of ammonia gas and hydrogen chloride in air. |
Teacher demonstration: - To deduce rate of diffusion of ammonia gas and hydrogen chloride.
Q/A: - Students calculate ratio of rates of diffusion of the gases. |
student book
|
K.L.B.
BK III PP. 18-19 Longhorn Book III 21 |
|
| 4 | 1 |
GAS LAWS
|
Graham?s Law.
|
By the end of the
lesson, the learner
should be able to:
Carry out numerical tasks. |
Solve problems involving RMM, equal volumes of the gases involved.
Supervised practice. Assignment. |
Calculators
|
K.L.B. BK III
PP. 24-26 Longhorn Book III PP 22-24 |
|
| 4 | 2-3 |
THE MOLE
|
Mole, molar mass and R.A.M.
Number of moles in a substance. |
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. Calculate number of moles in a given mass of a substance. |
Discuss various analogies that lead to the definition of the mole.
Expose the meaning of R.A.M., Avogadro?s constant and molar mass. Worked examples. Supervised practice. |
Chart- table of molar masses of elements.
student book |
K.L.B. BK III
PP. 27-31 Longhorn Book III PP 34-35 K.L.B .BK III P. 34 Longhorn BK III PP 39-40 |
|
| 4 | 4 |
THE MOLE
|
Relative molecular mass
&
Relative formula mass.
|
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.
|
K.L.B.BK III
PP. 34-35 Longhorn Book III PP 44-60 |
|
| 4 | 5 |
THE MOLE
|
Relative molecular mass
&
Relative formula mass.
|
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.
|
K.L.B.BK III
PP. 34-35 Longhorn Book III PP 44-60 |
|
| 5 | 1 |
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 |
|
| 5 | 2-3 |
THE MOLE
|
Empirical Formula.
Molecular formula. |
By the end of the
lesson, the learner
should be able to:
Determine empirical formula of a compound given percentage composition by mass. Define molecular formula of a compound. Find molecular formula given percentage composition of a compound by mass. |
Worked examples.
Supervised practice. Assignment. Worked examples. Supervised practice. |
student book
Calculators. |
K.L.B.
BK III P. 43 Longhorn Book III PP 66-71 K.L.B.BK III P. 45 Longhorn Book III PP 73-75 |
|
| 5 | 4 |
THE MOLE
|
Molecular formula.
|
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.
|
K.L.B.BK III
P. 45 Longhorn Book III PP 73-75 |
|
| 5 | 5 |
THE MOLE
|
Concentration of a solution.
|
By the end of the
lesson, the learner
should be able to:
Define concentration of a solution. Find concentration of a solution in grams/litre and moles/litre. |
Q/A: - Equivalent ratios, e.g. 4g dissolved in 500cm? and
8g in 1 litre. Worked examples on concentration of solutions. |
chart
|
K.L.B. BK III
PP. 46-48 Longhorn Book III PP 76-81 |
|
| 6 | 1 |
THE MOLE
|
Molarity of a solution.
|
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? |
Teacher explains that molarity of a solution is given in moles of the solute per litre.
Worked examples. Supervised exercise. |
student book
|
K.L.B. BK III
PP. 48-49 Longhorn Book III PP 76-81 |
|
| 6 | 2-3 |
THE MOLE
|
Preparation of molar solutions.
Calculators on molar solutions. |
By the end of the
lesson, the learner
should be able to:
Define molar solutions. Prepare molar solutions. Solve numerical calculations on molar solutions. Problems on molar solutions. |
Q/A: - Description of preparation of molar solutions.
Worked examples. Supervised exercise. Assignment. |
Volumetric flasks, teat droppers/wash bottle.
Sodium hydrogen pellets. Weighing balance. student book |
K.L.B. BK III
PP. 50-51 Longhorn Book III PP 78-81 K.L.B. BK III P 51 Longhorn Book III PP 76-81 |
|
| 6 | 4 |
THE MOLE
|
Dilution of solutions.
|
By the end of the
lesson, the learner
should be able to:
Calculate molarity of a solution after dilution. |
Group experiments.
Calculations. |
student book
|
K.L.B. BK III
PP. 76-81 |
|
| 6 | 5 |
THE MOLE
|
Stoichiometry of a chemical reaction.
|
By the end of the
lesson, the learner
should be able to:
To determine mole ratio of given reactions. |
Group experiments: - Determine masses, hence moles of reacting CuSO4 solution and iron metal.
|
CuSO4 solution and iron metal.
|
K.L.B. BK III
P. 56 Longhorn Book III PP 87-92 |
|
| 7 | 1 |
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 |
|
| 7 | 2-3 |
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 |
|
| 7 | 4 |
Volumetric Analysis.
|
Apparatus used in titration experiments.
|
By the end of the
lesson, the learner
should be able to:
To use and read a pipette and a burette. |
Discussion and practical use of the apparatus.
Emphasis is laid on need to sterilize the apparatus after use. |
Pipettes
Burettes. |
K.L.B. BK III
PP. 63-64 Longhorn Book III PP 104-8 |
|
| 7 | 5 |
Volumetric Analysis.
|
Titration process.
|
By the end of the
lesson, the learner
should be able to:
To define titration as a process. Define a titration end-point. |
Review by Q/A: -
-Indicators and colour changes. -Choice of indicators. -Balanced chemical equations. Discuss characteristics of a good titre, when an an-end point is attained. |
Indicators
Suitable acid and base. |
K.L.B.
BK III PP. 64-67 Longhorn Book III PP 108-114 |
|
| 8 | 1 |
Volumetric Analysis.
|
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
|
K.L.B. BK III
P. 66 Longhorn Book III PP 108-114 |
|
| 8 | 2-3 |
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. To carry out calculations from experimental results. |
Class experiments: - To neutralize HCl with NaOH solution.
Fill in a table of results. Find the average base used. Step-by-step calculations. |
student book
Calculators. |
K.L.B. BK III
P. 66 Longhorn Book III PP 108-114 K.L.B. BK III P 66 Longhorn Book III PP 108-114 |
|
| 8 | 4 |
Volumetric Analysis.
|
Basicity of an acid.
|
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
|
K.L.B. BK III
P. 73 |
|
| 8-9 |
Mid term 2 examination |
|||||||
| 9 | 3 |
Volumetric Analysis.
|
Standardization of HCl.
|
By the end of the
lesson, the learner
should be able to:
To define standardization of HCl. |
Class experiments.
|
Dilute HCl, Na2CO3 solutions.
|
K.L.B. BK III PP. 74-75 |
|
| 9 | 4 |
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 |
|
| 9 | 5 |
Volumetric Analysis.
|
Redox Titration Reactions.
|
By the end of the
lesson, the learner
should be able to:
To standardize a solution with an iron (II) salt. |
Experiment and calculations.
|
Potassium Magnate
(VII) |
K.L.B. BK III
PP. 74-75 Longhorn Book III PP 114-115 |
|
| 10 | 1 |
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 |
|
| 10 | 2-3 |
Volumetric Analysis.
|
Water of crystallization.
Formula mass of ammonium iron (II) sulphate. |
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 find formula mass of ammonium iron (II) sulphate. |
Teacher exposes the formula of water of crystallization.
Class experiment. Filling in a table of results. Calculations from experimental results. |
Ammonium
Iron (II) Sulphate crystals. Dilute sulphuric (VI) acid. student book |
K.L.B. BK III
P. 76 K.L.B. BK III PP. 76 -77 |
|
| 10 | 4 |
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 |
|
| 10 | 5 |
Volumetric Analysis.
|
Atomicity 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
|
K.L.B. BK III
PP. 78 -80 Longhorn BK III PP 126-128 |
|
| 11 | 1 |
Volumetric Analysis.
|
Mass and volume of gases.
|
By the end of the
lesson, the learner
should be able to:
To determine mass and volume of gases. |
Teacher demonstration: - Determining mass of known volumes of oxygen / CO2.
|
Lubricated syringes
Oxygen/ CO2. |
K.L.B. BK III
P. 81 Longhorn BK III PP 126-127 |
|
| 11 | 2-3 |
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. To compare combining volumes of two reacting gases. |
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. Teacher demonstration: - Determining volumes of reacting gases; hence deduce volume rations. |
student book
|
K.L.B. BK III
79 ? 80 Longhorn Book III PP 126-127 K.L.B BK III P. 82 |
|
| 11 | 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 |
|
| 11 | 5 |
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 |
|
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