How to Make CO₂ from Vinegar and Baking Soda

Опубликовал Admin
31-01-2017, 15:48
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Did you know you could make carbon dioxide (CO2) from vinegar (CH3COOH) and baking soda (NaHCO3)? If you want to learn how, then read on!

Steps

  1. Acquire a container. You need a container so you can make the reaction happen and so you can contain the carbon dioxide inside the container. A 2-liter bottle will do the job nicely.
  2. Add vinegar. Fill it up to 1/3 of the bottle.
  3. Add the baking soda to the container. 2 1/2 tbsp of baking soda will do the job nicely for a 2-liter bottle with 1/3 vinegar.
  4. Watch the results. If you did that correctly, carbon dioxide will be one of the things produced in the solution. 
    • The reaction equation is NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2.
    • The acetic acid inside the vinegar is reacting with the sodium bicarbonate to create acetate, water, salt and carbonic acid. Carbonic acid is unstable therefore it decomposes into carbon dioxide.

Tips

  • Changing the amount of vinegar and baking soda will change the amount of carbon dioxide being produced.
  • Enclose the container to store the carbon dioxide and prevent it from getting outside the container.
  • The reaction happens once, which means once you put baking soda inside you will need more baking soda to re-do the reaction.
  • The more times you do the reaction, the more water there is, which will lower the concentration of the acetic acid.

Warnings

  • In large quantities or unventilated areas, breathing in a lot of CO2 can be harmful. In small quantities for an experiment, it should be fine.
  • Do not let too much CO2 to escape the bottle. It will contribute to the CO2 buildup inside the room if the room isn't properly ventilated.
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