Carbon dioxide properties
To show some properties of carbon dioxide.
What students learn
The science behind this experiment
This experiment explores some properties of carbon dioxide, introduced in the previous experiment.
Equipment used
- Iron stand — 5404.52
- Universal clamp — 5416.20
- Right angle clamp — 5401.16
- Conical flask 150 ml — 1323.10
- Rubber stopper, 2 holes — 5450.80
- Dropping funnel — 1359.00
- Right angle bent glass delivery tube — 1468.07
- Connection for glass delivery tubes — 5449.43
- Glass delivery tube — 1468.02
- Beaker 100 ml — 1118.20
- Test tubes — 1473.60
- Parafilm — 1646.00
Chemicals and reagents
- Calcium carbonate
- Hydrochloric acid — R:34-37 S:26-45
- Distilled water
- Lime water
Safety notes
Questions for students
- What happens on putting the match into the beaker?
- What happens after pouring the gas from one test tube to another?
- What happens on testing with lime water?
What to expect
<p>The splint is extinguished because carbon dioxide cannot sustain combustion.</p><p>The splint in the second test tube is extinguished whereas in the first tube it continues to burn.</p><p>This means that carbon dioxide is denser than air and can be poured from one container to another like a liquid.</p><p>A white precipitate of calcium carbonate forms in the test tube confirming that the gas is carbon dioxide.</p>
Disposal
Dispose of the liquids into the acids and bases waste container.
Run this experiment in your classroom
This experiment is part of the ATP Mobile Lab — a self-contained laboratory that turns an ordinary classroom into a working science lab, with over 200 experiments in physics, chemistry, biology, robotics and engineering. Gali, the AI tutor built into ATP Connect, guides students through each step and answers their questions at the bench.
See the Mobile LabTalk to our team