Dilute HCL will react with calcium carbonate (aka marble chips) to produce calcium chloride, water and carbon dioxide...
Method
- Put marble chips at the bottom of a flask
- Fill the flask with hydrochloric acid, it doesn't have to be full, just covering the marble chips
- immediately attach a bung with a delivery tube into an upturned test tube in water
- the carbon dioxide will collect in this test tube
Equations
hydrochloric acid + calcium carbonate ---> calcium chloride + water + carbon dioxide
2HCL(aq) + CaCO3(s) ---> CaCl2(aq) + H2O(l) + CO2(g)
A blog covering and explaining the Edexcel IGCSE Chemistry specification for the 2016 summer exams. If you are doing just double science, you do not need to learn the stuff for paper two, if you are doing triple you will need to learn all (GOOD LUCK!) I have separated the papers to make files easier to find. Hope it helps :)
Wednesday, 30 March 2016
2.20 describe the laboratory preparation of carbon dioxide from calcium carbonate and dilute hydrochloric acid
Labels:
oxygen and oxides,
Paper 1,
section 2
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