Testing for CO2 (Carbon dioxide) with Limewater скачать в хорошем качестве

Testing for CO2 (Carbon dioxide) with Limewater

To test of the presence of Carbon dioxide (CO2 in a gas) we can bubble it through a solution of limewater. If there is CO2 present it will react with the limewater to produce a milky white precipitate. The reaction is: CO2 (g) + Ca(OH)2 (aq) = CaCO3 (s) + H2O (l) In the products we have CaCO3 (s). That is the precipitate and that is want causes the solution to have the milky white color. Bubbling a gas through limewater is a common lab or demonstration in school to test for the presence of CO2. It also comes up frequently on quizzes and exams! Related videos: How to balance CO2 + Ca(OH)2 :    • How to Balance Ca(OH)2 + CO2 = CaCO3 ...   Net ionic equation for:    • How to Write the Net Ionic Equation f...   CO2 + H2O:    • CO2 + H2O  (Carbon dioxide + Water)   To recap, the limewater test is a useful tool to detect Carbon dioxide. More chemistry at www.Breslyn.org