πŸ”¬ Lab Demonstrations

Practical science demonstrations for IGCSE, A-Level, and IAL students. Master your practical exam skills!

Acid-Base Titration

A-Level / IAL πŸ“‹ CIE & Edexcel πŸ“„ Paper 3, Paper 5

Learn how to perform accurate titrations to determine unknown concentrations. Includes indicator selection and burette techniques.

🎯 Key Skills

Burette reading Endpoint detection Concordant titres Mean titre calculation

πŸ”§ Materials & Equipment

Burette Pipette Conical flask Indicator Acid/Base solutions

Enthalpy Change Determination

A-Level / IAL πŸ“‹ CIE & Edexcel πŸ“„ Paper 3, Paper 5

Measure temperature changes in chemical reactions to calculate enthalpy changes. Covers calorimetry and heat loss calculations.

🎯 Key Skills

Calorimetry Temperature measurement Heat loss correction Graph plotting

πŸ”§ Materials & Equipment

Calorimeter Thermometer Measuring cylinder Reaction mixture

Rate of Reaction - Iodine Clock

IGCSE / A-Level πŸ“‹ CIE & Edexcel πŸ“„ Paper 5, Paper 3

Study how concentration affects reaction rates using the classic iodine clock reaction.

🎯 Key Skills

Rate determination Concentration effects Graph analysis Initial rate method

πŸ”§ Materials & Equipment

Potassium iodide Hydrogen peroxide Sodium thiosulfate Starch indicator

Qualitative Analysis - Cation Tests

IGCSE / A-Level πŸ“‹ CIE & Edexcel πŸ“„ Paper 5, Paper 6

Identify unknown cations using flame tests and precipitation reactions.

🎯 Key Skills

Flame test procedure Precipitation reactions Observation recording Identification tables

πŸ”§ Materials & Equipment

Platinum wire Hydrochloric acid Metal salt solutions Sodium hydroxide

πŸ‘¨β€πŸ”¬ Our Lab Experts

πŸ‘¨β€πŸ«
Kamrul Alam
Chemistry Specialist
20+ years experience
πŸ‘¨β€πŸ«
Farjana Alam
Chemistry Specialist
8+ years experience
πŸ‘¨β€πŸ«
Dr. Rahman
Physics Specialist
12+ years experience
πŸ‘¨β€πŸ«
Prof. Ahmed
Biology Specialist
15+ years experience

πŸ“ Practical Exam Tips

πŸ“Š

Recording Data

Use appropriate significant figures and units. Create clear tables before starting experiments.

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Graph Plotting

Choose correct scales, label axes with units, plot points accurately, draw best-fit lines.

βš–οΈ

Uncertainties

Calculate percentage errors, identify systematic and random errors, suggest improvements.

πŸ”¬

Safety First

Always wear safety goggles, tie back hair, handle chemicals carefully, know emergency procedures.

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