Laboratory Preparation of Carbon Dioxide
Interactive Chemistry Simulation for School Students
⚗️ Apparatus Required
• Woulfe's Bottle
• Thistle Funnel
• Delivery Tube
• Gas Jar
• Calcium Carbonate (CaCO₃)
• Dilute Hydrochloric Acid (HCl)
📝 Chemical Reaction
CaCO3 + 2HCl → CaCl2 + H2O + CO2↑
Calcium carbonate reacts with dilute hydrochloric acid to produce calcium chloride, water, and carbon dioxide gas.
💡 Key Points
• CO₂ is collected by upward displacement of air (denser than air)
• The gas is colourless and odourless
• It turns limewater milky
• CO₂ does not support combustion
⚠️ Safety Precautions
• Always wear safety goggles
• Handle acids with care
• Work in a well-ventilated area
• CO₂ in large quantities can be harmful