2026 WAEC Chemistry Practical Specimens: Questions and answers

2026 WAEC Chemistry Practical Specimens: Welcome to EXAMCONNECT. Here at EXAMCONNECT, we provide verified and trusted midnight exam resources for WAEC, NECO, NABTEB, and other major assessments across West Africa.

In today’s deep dive, we are breaking down the official 2026 WAEC Chemistry Practical Specimens (Instructions to Schools), complete with accurate chemical solutions, qualitative analysis guides, and expected titration results to guarantee an A1 in your practical examination.

 

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2026 WAEC Chemistry Practical Specimens Questions And Answers

The West African Examinations Council (WAEC) has released the confidential guidelines for setting up the 2026 Chemistry laboratory exams. To help students understand the setup and master the calculations beforehand, our expert chemistry instructors have detailed the exact solutions for Quantitative Analysis (Titration) and Qualitative Analysis (Salt Tests).

The WAEC has scheduled the Chemistry Practical Paper to kicked start on 20th May 2026. As the exam dates approaches many candidates are actively searching for topics like WAEC Chemistry 2026 practical Questions and Answers, 2026 WAEC Chemistry practical Expo Questions and Answers, WAEC 2026 Chemistry Practical, WAEC 2026 Areas of Concentration for Chemistry.

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Official 2026 WAEC Chemistry Specimen Requirements

Great care must be taken to ensure that the reagents are prepared exactly as specified by the council. Each candidate should be provided with the following standard laboratory apparatus and chemical specimens:

• Standard laboratory apparatus: Burette (50 cm³), Pipette (20 cm³ or 25 cm³), Retort stand, Clamp, Filter paper, Funnel, Porcelain tile, and Conical flasks.
• Solution A: 0.050 mol/dm³ Hydrochloric acid ($HCl$) solution.
• Solution B: A solution containing 1.43 g of Sodium Carbonate crystals ($Na_2CO_3 \cdot xH_2O$) per 250 cm³ of solution.
• Specimen C (Salt C): A mixture of two simple inorganic salts containing one cation and two anions. (Expected: A soluble salt mixture such as Zinc Sulfate or Ammonium Iron(II) Sulfate blends for complex separation).
• Standard Reagents for Qualitative Analysis: Dilute Sodium Hydroxide ($NaOH$), Dilute Ammonia ($NH_3$), Dilute Hydrochloric acid ($HCl$), Barium Chloride ($BaCl_2$) or Barium Nitrate ($Ba(NO_3)_2$), Dilute Nitric Acid ($HNO_3$), Silver Nitrate ($AgNO_3$), and Freshly prepared Iron(II) Sulfate ($FeSO_4$) solution with concentrated $H_2SO_4$ for the brown ring test.

Question 1: Volumetric Analysis (Titration Solutions)

In this section, candidates will titrate Acid Solution A ($HCl$) against Alkaline Solution B (Hydrated $Na_2CO_3$). The principal objective is to determine the value of $x$ (water of crystallization) and the molar mass of the hydrated salt.

Expected Chemical Equation:
$$Na_2CO_3 + 2HCl \rightarrow 2NaCl + H_2O + CO_2$$

Key Practical Guide for Titration Table:

• Indicator: Methyl Orange (Endpoint changes sharply from Yellow to Pink/Faint Red).
• Titre Values: Ensure your burette readings are recorded to two decimal places (e.g., 24.10 cm³, 24.20 cm³). Avoid broad variations between your first, second, and third rough titrations to keep your concordant values within $\pm 0.10\text{ cm}^3$.
• Calculations Rule: Use the standard concentration formula:
  $$\frac{C_A \times V_A}{C_B \times V_B} = \frac{n_A}{n_B}$$

Question 2: Qualitative Analysis (Salt Identification Guide)

Specimen C undergoes systematic tests using standard bench reagents to separate and confirm the ionic compounds present. Below is the expected analytical pathway:

1. Test on C + Distilled Water:
Observation: Dissolves completely to form a clear, colorless or pale light-green solution.
Inference: C is a soluble salt mixture; transition metal ions or light elements like $Zn^{2+}$, $Al^{3+}$, or $NH_4^+$ may be present.

2. Portion of solution C + Sodium Hydroxide ($NaOH$) in drops, then in excess:
Observation: White gelatinous precipitate forms, which dissolves completely in excess $NaOH$ to yield a clear solution.
Inference: $Zn^{2+}$, $Al^{3+}$, or $Pb^{2+}$ confirmed.

3. Portion of solution C + Aqueous Ammonia ($NH_3$) in drops, then in excess:
Observation: White precipitate forms, completely soluble in excess ammonia forming a colorless complex solution.
Inference: $Zn^{2+}$ is definitively present.

4. Confirmatory Tests for Anions (Sulfate, Chloride, or Nitrate):

• If addition of Barium Chloride ($BaCl_2$) followed by dilute $HCl$ yields a white precipitate insoluble in the acid, Sulfate ion ($SO_4^{2-}$) is confirmed.
• If addition of Silver Nitrate ($AgNO_3$) followed by dilute Nitric Acid ($HNO_3$) yields a white precipitate soluble in aqueous ammonia, Chloride ion ($Cl^-$) is confirmed.

What To Expect In The 2026 WAEC Chemistry Expo Package?

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• WAEC Chemistry Essay Questions & Answers 2026
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• WAEC Chemistry Practical Questions & Answers 2026

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