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Questions and Answers
What should be done immediately after cleaning a chemical spill?
What should be done immediately after cleaning a chemical spill?
Which of the following actions is NOT recommended for fires in the laboratory?
Which of the following actions is NOT recommended for fires in the laboratory?
What is the appropriate first aid measure for a fresh wound?
What is the appropriate first aid measure for a fresh wound?
What is a key practice to maintain a safe laboratory work environment?
What is a key practice to maintain a safe laboratory work environment?
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What should be applied to the skin in case of an alkali burn?
What should be applied to the skin in case of an alkali burn?
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Which of the following is an appropriate response for eye irritation caused by chemicals?
Which of the following is an appropriate response for eye irritation caused by chemicals?
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If someone has fainted in the laboratory, what should be done?
If someone has fainted in the laboratory, what should be done?
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What is a NON-essential responsibility when conducting experiments in the laboratory?
What is a NON-essential responsibility when conducting experiments in the laboratory?
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Which piece of Personal Protective Equipment (PPE) is specifically used to protect the eyes from chemical splashes?
Which piece of Personal Protective Equipment (PPE) is specifically used to protect the eyes from chemical splashes?
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What is the safest method to respond immediately to a chemical spill on the skin?
What is the safest method to respond immediately to a chemical spill on the skin?
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Which action is NOT recommended when attending to chemical exposure in the eyes?
Which action is NOT recommended when attending to chemical exposure in the eyes?
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What is the primary purpose of wearing gloves in a laboratory setting?
What is the primary purpose of wearing gloves in a laboratory setting?
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When using a fire extinguisher, what does the 'A' in P.A.S.S. stand for?
When using a fire extinguisher, what does the 'A' in P.A.S.S. stand for?
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What should you do if you have long hair while working in a laboratory?
What should you do if you have long hair while working in a laboratory?
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Which of the following actions is prohibited in the laboratory at all times?
Which of the following actions is prohibited in the laboratory at all times?
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In the event of a fire, what is the recommended distance from which to operate a fire extinguisher?
In the event of a fire, what is the recommended distance from which to operate a fire extinguisher?
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What is the primary use of a fume hood in a laboratory setting?
What is the primary use of a fume hood in a laboratory setting?
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Which of the following tools is employed for maintaining laboratory cleanliness?
Which of the following tools is employed for maintaining laboratory cleanliness?
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In the event of a chemical spill, which device would be most appropriate to handle hazardous liquids?
In the event of a chemical spill, which device would be most appropriate to handle hazardous liquids?
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Which personal protective equipment is essential when using a wash bottle?
Which personal protective equipment is essential when using a wash bottle?
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What should never be done with a wash bottle in the laboratory?
What should never be done with a wash bottle in the laboratory?
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Study Notes
Laboratory Safety and Emergency Procedures
- "Chimney effect" can directly expose students to fire hazards.
- Maintain a clean workplace by washing hands before and after experiments.
- Clean up broken glass and spills immediately to prevent accidents.
- Never use mouth pipettes for transferring liquids.
- Dispose of solid and liquid wastes properly to ensure safety.
Emergency Procedures
- Small fires: Use wet towels or sand; for paper fires, submerge in water.
- In case of a building fire, stay calm and exit via the closest fire exit.
- Eye irritation: Rinse with tap water; apply a 2% NaHCO3 solution for acid exposure.
- Skin cuts: Wash with water, apply iodine for fresh wounds, and cover with sterile gauze.
- For fainting: Lay the victim down, keep head level with body, and use aromatic spirit of ammonia.
- Treatment for acid burns involves running water and 5% acetic acid solution; alkali burns should use saturated NaHCO3 for 20 minutes.
- Minor burns: cool with water, apply boric ointment or sterile petroleum jelly.
Importance of Safety Procedures
- Following safety guidelines creates a safer laboratory environment.
Laboratory Equipment Set-Ups
- Heating set-up requires wire gauze for support, tripod, and burners.
- Filtration involves a funnel with filter paper and a receiving vessel to collect filtrate.
- Distillation needs a thermometer, condenser, and distilling flask with mixture.
Personal Protective Equipment (PPE)
- Use appropriate attire: goggles, masks, laboratory gowns, and gloves.
- Eating, drinking, and smoking are strictly prohibited in labs.
Safety Equipment Usage
- Eye wash station: flood eyes with water for 15 minutes if chemicals contact them.
- Safety shower: used for large chemical spills on skin/clothing.
- Fire extinguisher: operate by pulling the pin, aiming at the base of the fire, squeezing the handle, and sweeping the hose.
- Fire safety blanket: put out clothing fires and keep shock victims warm.
Laboratory Tools and Devices
- Crucible: heat-resistant container for high-temperature heating.
- Iron stand: supports glassware during experiments.
- Mortar and pestle: used for crushing and grinding substances.
- Evaporating dish: used for heating solutions over a burner.
- Test tube brush: cleans inside of test tubes.
- Stirring rod: mixes liquids in flasks or beakers.
- Fume hood: limits exposure to hazardous fumes.
- Wash bottle: rinses glassware (not for eye rinsing).
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Description
Test your knowledge on essential laboratory safety procedures. This quiz covers essential actions following a chemical spill, appropriate first aid measures, and safe practices for maintaining a laboratory environment. Ensure you're well-informed to handle laboratory emergencies effectively.