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Root Beer Solubility

  • Page ID
    131423
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    Required Training

    Required PPE

    UC Lab Safety Fundamentals

    Lab coat, safety glasses/goggles, nitrile gloves

    Equipment

    Chemicals

    Copper rod

    Tongs for rod

    Propane torch

    Root Beer (diet is okay)

    Large plastic pans for collecting spill

    Plenty of paper towels

    Procedure:

    1. Hold the copper rod with the tongs and heat it with the torch until very hot
    2. Open the soda bottle (can ask for a student volunteer)
    3. Drop the rod into the bottle and stand back
    4. A fountain of foam will shoot out of the bottle
    5. Clean any spills quickly to avoid leaving a sticky mess

    Discussion:

    The solubility of gases decreases as the solvent temperature increases. Dropping the heated rod into the soda quickly raises the temperature. Carbon Dioxide’s solubility rapidly decreases causing gas to be quickly released along with plenty of foam.

    Hazards:

    Left over soda can be flushed down the drain. Be sure to clean everything thoroughly.

    SOP:

    N/A

    Disposal (by Storeroom):

    N/A


    Root Beer Solubility is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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