How to make carbon dioxide at science lab by using chemicals not mouth
Answers
Explanation:
Helpful? Bubble the gas through limewater. The most effective way to test for CO2 is to bubble the gas through "limewater", a diluted solution of calcium hydroxide (slaked lime). When you bubble carbon dioxide through the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone.
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Explanation:
The simplest method is to add a carbonate to an acid. Carbon dioxide will be generated.
Some combinations will be too slow, the acid is not reactive enough, or the salt produced as the other product is insoluble and precipitates out, covering the carbonate, and preventing further reactions. ( You could try vigorously stirring to keep the salt suspended).
The one most commonly used is calcium carbonate (limestone rocks, so cheap) and hydrochloric acid (widely available, cheap and a strong acid).
Process: Place the reactants in a flask with a bung and delivery tube into water. Collect the gas bubbles as they appear.