Subject · Chemistry

Every Chemistry practical the exam can throw at you.

From qualitative analysis (the single largest chunk of Paper 3) through titration, electrolysis, rates and organic chemistry. Every observation matches NSSCO Annexe B and the Cambridge mark scheme.

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Syllabus coverage

21 of 21 practicals live

100%

Cations + anions + gas tests (full)Live
Flame & gas tests drillLive
Filtration + crystallisation (rock salt)Live
Paper chromatographyLive
Fractional distillation (wine → ethanol)Live

Topic coverage

Organised by syllabus topic

Organised by syllabus topic — aligned to the Namibian NSSCO & NSSCAS Chemistry syllabuses.

Qualitative analysis

Cations + anions + gas tests (full)

All Annexe B tests; NSSCO Paper 3 / NSSCAS Paper 3 core

Live

Flame & gas tests drill

Live

Separation & purification

Filtration + crystallisation (rock salt)

Live

Paper chromatography

Live

Fractional distillation (wine → ethanol)

Live

Diffusion of gases (NH₃ + HCl tube)

Live

Rates of reaction

KClO₃ → O₂ in a gas syringe

Live

Mg + HCl (concentration effect)

Live

Iodine clock (H₂O₂ + KI + thiosulfate)

Live

Na₂S₂O₃ + HCl (turbidity timer)

Live

Acids, bases & salts

Acid–base titration (phenolphthalein)

Live

Insoluble salt preparation (precipitation)

Live

Soluble salt preparation (acid + carbonate)

Live

Standardised redox titration (alloy)

Live

Electrochemistry

Electrolysis of 6 electrolytes

Live

Electroplating zinc with copper

Live

Organic chemistry

Test for unsaturation (Br₂ water)

Live

Fermentation of glucose to ethanol

Live

Metals & reactivity

Reactivity series (displacement)

Live

Reactivity of Group I metals with water

Live

Calorimetry & energetics

Enthalpy of neutralisation

Live