WAEC Chemistry (Practical) Areas Of Concentration 2026/2027

By WAEC2026 April 24, 2026 Blog, WAEC Areas of Concentration 2026 0 Comments

WAEC Chemistry (Practical) Areas Of Concentration 2026/2027 – WASSCE Chemistry Practical (Paper 3) will be based on the following areas: 1. Quantitative Analysis (Titration) 2. Qualitative Analysis (Salt Analysis) 3. General Laboratory Techniques Chemistry Practical (Paper 3) will be based on the syllabus and general examination patterns.

Are you a science student preparing for the WAEC Chemistry (Practical) 2026/2027 exam and looking for key areas of concentration? Look no further.

Chemistry is a core subject for science students, and a good grade (A1–C6) is essential for gaining admission into most science-related courses. To achieve this, you need to study both hard and smart, focusing on important topics and mastering exam techniques.

Contents

1 1. Quantitative Analysis (Titration)
2 Acid–Base Titrations:
3 Redox Titrations:
4 Calculations:
5 2. Qualitative Analysis (Salt Analysis)
6 Tests for Inorganic Salts (Cations):
7 Tests for Anions:
8 Tests for Gases:
9 Organic Analysis:
10 3. General Laboratory Techniques and Theory
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1. Quantitative Analysis (Titration)

This section tests your ability to measure volumes accurately and calculate concentration.

Acid–Base Titrations:

Typically involve strong acids and strong bases such as:
- Hydrochloric acid or Sulfuric acid
- Against Sodium hydroxide or Potassium hydroxide

Redox Titrations:

Commonly involve:
- Potassium permanganate(VII)
- Against Iron(II) salts such as Iron(II) sulfate or Ammonium iron(II) sulfate
- Or Oxalic acid

Calculations:

Determining concentration in:
- mol/dm³ (molarity)
- g/dm³ (mass concentration)
Determining molar mass of acids/bases and reaction stoichiometry
Calculating average titre values
Understanding end-point indicators

2. Qualitative Analysis (Salt Analysis)

This involves identifying the cations and anions present in unknown samples.

Tests for Inorganic Salts (Cations):

Common cations include:
- NH₄⁺, Cu²⁺, Fe²⁺, Fe³⁺, Zn²⁺, Ca²⁺, Pb²⁺
Reagents used include:
- Sodium hydroxide
- Aqueous ammonia

Tests for Anions:

Common anions include:
- CO₃²⁻, SO₄²⁻, Cl⁻, NO₃⁻, SO₃²⁻

Tests for Gases:

Carbon dioxide → turns limewater milky
Chlorine → decolorizes litmus paper
Ammonia → turns damp red litmus blue
Hydrogen → produces a “pop” sound

Organic Analysis:

Tests for functional groups:
- Reducing sugars → Fehling’s or Benedict’s solution
- Fats and oils → grease spot/emulsion test
- Proteins → Biuret test

3. General Laboratory Techniques and Theory

Apparatus Identification:

Burette, pipette, conical flask, beaker, measuring cylinder

Safety and Procedures:

Proper use of tongs, wire gauze, and Bunsen burner

Observation and Recording:

Record titration readings to 2 decimal places
Observe:
- Colour changes
- Precipitates
- Solubility

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WAEC Chemistry (Practical) Areas Of Concentration 2026/2027

1. Quantitative Analysis (Titration)

Acid–Base Titrations:

Redox Titrations:

Calculations:

2. Qualitative Analysis (Salt Analysis)

Tests for Inorganic Salts (Cations):

Tests for Anions:

Tests for Gases:

Organic Analysis:

3. General Laboratory Techniques and Theory

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1. Quantitative Analysis (Titration)

Acid–Base Titrations:

Redox Titrations:

Calculations:

2. Qualitative Analysis (Salt Analysis)

Tests for Inorganic Salts (Cations):

Tests for Anions:

Tests for Gases:

Organic Analysis:

3. General Laboratory Techniques and Theory

Recent Posts

Related Posts

About Author

WAEC2026

Add a Comment