If a fire begins and is confined in an open container such as a beaker, it can usually be extinguished simply by covering the top of the beaker to remove the source of oxygen . Be careful to avoid spreading a confined fire by blasting it with a fire extinguisher.
What should you do if a fire starts in a beaker quizlet?
Place a watch glass or notebook on top of the beaker to restrict access to air and let it burn itself out . B. Blast the beaker with a CO2 fire extinguisher.
How should you put out the flame if a small beaker catches fire?
b) If it is a small, contained fire, such as in a flask or beaker, cover the container with a piece of ceramic, cutting off the supply of oxygen to the fire and thus putting it out. 5. Be careful when using glassware. Cuts and burns are the most common injuries that occur in chemistry laboratories.
What should a student do if a beaker spills?
Forceps are used to grab and move things specially boiling. It is used to measure. What should a student do if the content inside a beaker spills ? If this happens clean with Water .
What to do in the event of a fire in the lab?
- Notify: Other occupants of the immediate space (yell) Other occupants of the facility (use the fire alarm) ...
- Evacuate. The immediate area of the problem. The space within which the problem has occurred. ...
- Isolate. Lower hood sash, close lab door(s), close corridor doors. IF SAFE TO DO SO, attempt to extinguish.
How can a small fire be extinguished most easily?
How can a small contained fire be extinguished most easily? Smother the fire with a small container (i.e., a beaker) .
What is your action if you hear a fire alarm?
If you hear a fire alarm:
STOP WORK AND EVACUATE THE BUILDING . Follow the EXIT Signs. ... Do not block the fire doors, stairways, or exits. Evacuate and proceed until you are outside of the building.
Can vinegar put out a fire?
Vinegar is not usually flammable and will not readily catch fire . Although vinegar contains acetic (ethanoic) acid, which is very flammable, most vinegar contains only 5% to 20% acetic acid. This is not a high enough concentration to sustain a fire.
Does vinegar stop fire?
Vinegar mixed with dissolved baking soda causes a quick chemical reaction that creates the product carbon dioxide (CO 2 ). If the chemical reaction occurs inside a beaker containing a lit candle, the carbon dioxide created will accumulate and push out the oxygen, thus extinguishing the flame .
How do you put out a clothing fire?
Extinguish burning clothing by using the drop-and-roll technique or by dousing with cold water or using the emergency shower if it is immediately available. If your clothing catches fire, do not run or take other action that will fan the flames. Immediately drop down and roll on the floor to extinguish the flames.
What should be done with the wastes in the flame test experiment?
What should be done with the wastes in the Flame Test experiment? They should be disposed of in the labeled container. They should be thrown in the trash can beneath the sink. They should be flushed down the sink with plenty of water .
What should you not do if a persons close suddenly catch fire?
What should you NOT do if a person’s clothes suddenly catch fire? Wrap a fire blanket around a standing person .
What should you not do if a persons clothes suddenly catch fire?
Never wrap a person whose clothes are on fire in a fire blanket, as it can create a chimney effect and cause burns on the person’s body and face. Instead they should roll on the floor to try to put out the fire, or step under a safety shower, if there is one in close proximity.
What is the first thing you do if a fire starts during a lab?
should always pull the fire alarm and call 911 to evacuate the building and bring the fire department. ➢ Keep areas around all types of heating equipment clear of combustibles at all times. While working in a lab you notice that smoke is coming from a fume hood across the room.
Why is there no eating or drinking in a lab?
You should not eat in a chemistry lab because of the threat of contamination . This threat of contamination has two parts. The first part is that you never know where chemical residue may be and ingesting it could be dangerous. Many chemicals leave no visible trace of their presence.
What is the first thing to do if there is a fire in the lab Labster?
Evacuate through the emergency exits . These ensure that nobody can get trapped in case of a fire, and therefore should always be kept clear. Evacuation plans should be placed near the exits. Fire blankets can be used to protect yourself.
