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2.1: Safety and Equipment

  • Page ID
    379575
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    Caution

    Safety

    Emergency Preparedness

    • Eye Protection is mandatory in this lab, and you should not wear shorts or open toed shoes.
    • Know what is being used in this lab

    Minimize Risk

    • Check the cord on the hotplate, inform the instructor if it is frayed.
    • Make sure the electrical cord never touches the surface of the hotplate

    Recognize Hazards

    • You will be working with an alcohol thermometer and care must be taken when handling it. You will be using a water bath to heat your solution and must always take care not to let the thermometer touch the bottom of the glass where it is in contact with the hot plate.
    • All waste is placed in the labeled container in the hood and will be recycled when the lab is over. Contact your instructor if the waste container is full, or about full.

    Please see UPenn EHRS Hot Plate Malfunctions and Misuse site for more information on accidents involving hot plates.

    Equipment and Materials Needed

    500mL beaker
    250mL beaker
    Thermometer
    5 mL pipette and bulb
    Analytical balance
    Hot plate
    Test tube clamp
    Ring stand
    5 small test tubes and rack
    8 in test tube
    Cork for 8 in test tube w/slot for stirrer and thermometer
    Wire Stirrer
    KClO\(_{3(s)}\)
    Ice

    Your Lab Drawer

    • 500 mL beaker
    • 250 ml beaker

    Locate in the Lab

    • Thermometer
    • 5 mL pipette and bulb
    • Analytical balance
    • Hot plate
    • Test tube clamp
    • Ring stand
    • 5 small test tubes and rack
    • 8 in test tube
    • Cork for 8 in test tube w/slot for stirrer and thermometer
    • Wire Stirrer

    Reagents

    • KClO\(_{3(s)}\)

    Instructor

    • Ice
    Figure \(\PageIndex{1}\): Experimental setup. See how the thermometer goes through the stirrer. When placing the test tube into the water bath do not have it touch the bottom, but add enough water to the bath so that it goes up to about an 2 inches from the top when the thermometer is inserted. (Belford CC-BY)

    2.1: Safety and Equipment is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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