SS2 Chemistry 1st Term

SS2 CHEMISTRY 1ST TERM

SS2 Chemistry First Term Scheme of Work & Lesson Note

Chemistry is one of the science subjects SS2 students are required to offer in first term. The Unit of Instruction for SS2 Chemistry 1st Term is carefully developed from the Scheme of Work, which in turn is, based on NERDC current curriculum and SSCE syllabus.

Mass-Volume Relationship

SUB TOPICS:
A. Stoichiometry of reaction
B. Reaction involving gas volume
C. Stoichiometry of copper ion and zinc ion

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LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Explain the concept of stoichiometry of a chemical reaction.
2 Calculate mass-volume of substances in hypothetical reactions.
3 ETC

Acid–Base Titration

SUB TOPICS:
A. Definition and examples of acid-base titration
B. Molar solution
C. Calculation on volumetric analysis

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Identify strong and weak acids or bases.
2 Define standard solution.
3 ETC

Chemical Reactions

SUB TOPICS:
A. Types of chemical reactions
B. Rate of chemical reactions
C. Rate curve

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Identify reactions and products of any chemical reactions.
2 State types of chemical reactions.
3 ETC

Chemical Reactions (CONT'D)

SUB TOPICS:
A. Collision theory
B. Factors affecting rate of chemical reactions

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Explain collision theory with respect to reaction rate and time.
2 Describe the influence of the following on a chemical reaction rate: nature of reactions, temperature, pressure, etc.
PRACTICAL APPROACHES:
Carry out simple experiment to illustrate the effect of concentration using acidified KI solution, hydrogen peroxide and starch powder.

Energy and Chemical Reactions

SUB TOPICS:
A. Heat content and heat of reaction
B. Exothermic and endothermic reactions
C. Energy relationship in exothermic and endothermic reactions
D. Heat of reaction and chemical bond

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Explain endothermic reaction and exothermic reaction.
2 Identify a reaction as either endothermic or exothermic.
3 Explain the concept of enthalpy change of a chemical reaction.
4 Draw the energy profile diagram for endothermic and exothermic reactions.
5 ETC

Energy and Chemical Reactions (CONT'D)

SUB TOPICS:
A. Hess’s law and Haber cycle
B. Chemical thermodynamics
C. Conditions for spontaneity of a reaction

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Define Hess’s law.
2 Explain Haber cycle.
3 ETC

SS2 Chemistry 1st Term Revision and Mid Term Test

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1. What is responsible for metallic bonding? WAEC 2001, Q8

 
 
 
 

2. Which of the following compounds is covalent? WAEC 2001, Q9

 
 
 
 

3. Which of the following contains co-ordinate covalent bond? WAEC 2000, Q7

 
 
 
 

4. Calculate the mass of chlorine gas which occupies a volume of 1.12 dm3 at S.T.P.
[CI = 35.5, 1 mole of gas occupies 22.4 dm3 at S.T.P] WAEC 2002, Q15

 
 
 
 

5. The type of chemical bond that exists between potassium and oxygen in potassium oxide is — WAEC 2000, Q6

 
 
 
 

Question 1 of 5

Chemical Equilibrium (CONT'D)

SUB TOPICS:
A. Equilibrium constant, free energy and electron potential
B. Equilibrium in practice

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Explain the meaning of equilibrium constant Kc.
2 State the relationship between equilibrium constant Kc, free energy and electrode potential.
3 Explain Le Charteliers principle.
4 Write equilibrium equation and constant Kc of a reversible reaction.
5 ETC

Water, Solution and Solubility

SUB TOPICS:
A. Sources and treatment of water
B. Hardness of water
C. Removal of hardness in water
D. Advantages and disadvantages of hard water

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 State the sources of water.
2 Explain the causes of hardness of water.
3 Outline the procedures involved in the treatment of water for town supply.
4 Demonstrate the removal of hardness in water using washing soda.
5 ETC

Water, Solution and Solubility (CONT'D)

SUB TOPICS:
A. Structure and properties of water
B. Water pollution
C. Solute, solution and solubility
D. Calculations on solubility

LEARNING OBJECTIVES: At the end of the lesson, learners should be able to:
1 Define the following concept: solute, solution, solvent, and solubility.
2 Prepare solutions of common substances.
3 ETC

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