WAEC Areas OF Concentration For Chemistry 2025/2026

By Abimbola Wasiu February 22, 2025 WAEC Areas Of Concentration 0 Comments

This examination, WAEC Areas OF Concentration For Chemistry 2025/2026 is not arranged by teaching order and is based on the assumptions that candidates have completed Integrated Science or General Science and Mathematics at the Junior Secondary level, will engage in suggested activities and projects to develop necessary competencies, and that schools offering the subject have well-equipped laboratories.

Contents

1 WAEC Areas OF Concentration For Chemistry 2025/2026
- 1.1 Practicals
  - 1.1.1 General skills and principles
2 Quantitative analysis acid-base titrations
- - 2.0.1 Redox titrations
  - 2.0.2 Qualitative analysis

WAEC Areas OF Concentration For Chemistry 2025/2026

Candidates must be knowledgeable about significant figures, S.I. units, and IUPAC nomenclature.

The examination consists of three papers: Paper 1 includes 50 multiple-choice questions from the common syllabus, to be completed in 1 hour for 50 marks. Paper 2 is a 2-hour essay paper worth 100 marks, divided into Section A, with ten short structured questions (25 marks), and Section B, where candidates answer three out of four questions from both the common syllabus and their specific country section (25 marks each).

Paper 3 is a practical test lasting 2 hours for school candidates or 1 hour 30 minutes for private candidates, featuring three compulsory questions on quantitative analysis, qualitative analysis, and practical activities, totaling 50 marks. Continuous assessment details will be provided by the Council.

Introduction to chemistry
Structure of the atom
. Standard separation techniques
Periodic chemistry
Chemical bonds
Stoichiometry and chemical reactions
States of matter
Energy and energy changes
Acids, bases and salts
Solubility of substances
Chemical kinetics and equilibrium system
Redox reactions
Chemistry of carbon compounds
Chemistry, industry and the environment
Structure of the atom
Periodic chemistry
Chemical bonds
Solutions
Energy and energy changes
Acids, bases and salts
Solubility of substances
Chemical kinetics and equilibrium systems
Chemistry of carbon compounds
Chemical industry and environment
Non metals and their compounds
Metals and their compounds

Practicals

General skills and principles

Candidates will be expected to be familiar with the following skills and principles:

Measurement of mass and volume;
Preparation and dilution of standard solutions;
Filtration, recrystallisation and melting point determination;
Measurement of heats of neutralization and solutions;
Determination of ph value of various solutions by colorimetry;
Determination of rates of reaction from concentration versus time curves;
Determination of equilibrium constants for simple system.

Quantitative analysis acid-base titrations

The use of standard solutions of acids and alkalis and the indicators; methyl orange, methyl red and phenolphthalein to determine the following:

The concentrations of acid and alkaline solutions;
The molar masses of acids and bases and water of crystallization.
The solubility of acids and bases;
The percentage purity of acids and bases;
Analysis of na₂co₃/nahco₃ mixture by double indicator methods (ghanaians only).
Stoichiometry of reactions.

Redox titrations

Titrations of the following systems to solve analytic/al problems:

Acidic mno₄^– with fe²⁺
acidic mno4- with c o 2-; 2 4
i2 in ki versus s o 2-.2 3

Qualitative analysis

No formal scheme of analysis is required characteristic tests of the followin, cations with dilute naoh_(aq) and nh_3(aq); nh₄; ca²⁺; pb²⁺; cu²⁺; fe²⁺; fe³⁺; al³⁺; and zn²⁺.

About Author

Prof Abimbola Wasiu

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WAEC Areas OF Concentration For Chemistry 2025/2026