Chemistry Laboratory Safety Quiz
91 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What was the cause of Michele Dufault's death?

  • Chemical poisoning
  • Accidental asphyxia by neck compression (correct)
  • Gunshot wound
  • Falling from a height

    • Where was Michele Dufault when the accident occurred?

  • Student dormitory
  • Physics and astronomy lab
  • University library
  • Chemistry lab machine shop (correct)

    • What was Michele Dufault majoring in?

  • Chemistry
  • Biology
  • Mechanical engineering
  • Physics and astronomy (correct)

    • Where is Michele Dufault's hometown?

    <p>Scituate, Massachusetts</p> Signup and view all the answers

    What caused the fiery accident involving Sheri Sangji in the chemistry laboratory?

    <p>Accidental ignition of a compound</p> Signup and view all the answers

    Which term best describes the materials that belong to the pyrophoric class?

    <p>Ignite upon exposure to air</p> Signup and view all the answers

    What is the consequence of exposure of pyrophoric materials to air?

    <p>Rapid ignition</p> Signup and view all the answers

    Why is chemistry often described as having a wonderfully explosive nature?

    <p>Because teachers use fiery demonstrations to engage students</p> Signup and view all the answers

    What charges were the defendants facing in the UCLA case?

    <p>Charges of violating occupational standards</p> Signup and view all the answers

    Who was Sheri Sangji in relation to the case?

    <p>The deceased whose death was associated with the violations</p> Signup and view all the answers

    How did Sangji sustain her injuries according to the text?

    <p>Her hair got caught in a lab machine shop</p> Signup and view all the answers

    What did Harran express following Sangji's death?

    <p>Shock and grief</p> Signup and view all the answers

    What term describes materials that ignite upon exposure to air?

    <p>Pyrophoric</p> Signup and view all the answers

    What was Sheri Sangji's occupation at the time of the accident?

    <p>Research assistant</p> Signup and view all the answers

    What university was Sheri Sangji working at when the accident occurred?

    <p>University of California, Los Angeles</p> Signup and view all the answers

    Which department does the settlement mention in relation to the felony charges?

    <p>Laboratory Operations</p> Signup and view all the answers

    What class of materials do pyrophoric substances belong to?

    <p>Materials that ignite spontaneously</p> Signup and view all the answers

    What aspect of t-butyllithium caused the burns described in the text?

    <p>Its corrosive nature</p> Signup and view all the answers

    In what context was Richard Harran charged in the UCLA case?

    <p>Inadequate laboratory safety practices</p> Signup and view all the answers

    What was the specific reason for Sangji's death according to the text?

    <p>Violation of safety regulations</p> Signup and view all the answers

    What was the role of Sheri Sangji in the laboratory where the accident occurred?

    <p>Research assistant</p> Signup and view all the answers

    Why did Sangji sustain severe burns according to the text?

    <p>Failure to follow safety protocols</p> Signup and view all the answers

    What was the official cause of Michele Dufault's death?

    <p>Neck compression</p> Signup and view all the answers

    What was the primary consequence of Michele Dufault's hair getting caught in the lathe?

    <p>Asphyxiation by neck compression</p> Signup and view all the answers

    How did Richard Levin describe Michele Dufault's passing in his message to Yale students and faculty?

    <p>'A true tragedy'</p> Signup and view all the answers

    What was Michele Dufault majoring in at Yale University?

    <p>Physics and Astronomy</p> Signup and view all the answers

    Where was Michele Dufault's body discovered after the unfortunate incident?

    <p>Chemistry lab machine shop</p> Signup and view all the answers

    What is the consequence of adding a solvent to nitric acid, according to the text?

    <p>Spark leading to a flash and smoke</p> Signup and view all the answers

    What is the purpose of Yale's state-of-the-art machine shop as mentioned in the text?

    <p>For faculty and staff to modify research instruments</p> Signup and view all the answers

    How did the chemical reaction in the lab involving Michele Dufault occur?

    <p>Flash caused by combining substances</p> Signup and view all the answers

    What did Trenton Department Captain Michael Oakley confirm about the unplanned chemical reaction?

    <p>The involvement of incompatible chemicals</p> Signup and view all the answers

    What was Michele Dufault's intended career path after graduating, as mentioned in the text?

    <p>Oceanographer</p> Signup and view all the answers

    What is the recommended personal protective equipment (PPE) when working in a laboratory setting?

    <p>Safety glasses/goggles, long lab coat, close-toed shoes, long pants, and gloves</p> Signup and view all the answers

    What should you do before handling a chemical in the laboratory?

    <p>Check if gloves are required and what type of gloves should be worn</p> Signup and view all the answers

    What is the recommended action for heating Pyrex containers in the laboratory?

    <p>Heat them in an open flame</p> Signup and view all the answers

    In case of reactions producing gases, what safety equipment should be used in a laboratory setting?

    <p>Fume hood or vent</p> Signup and view all the answers

    What should never be done with unlabeled chemical containers in a laboratory?

    <p>Use them without checking the contents</p> Signup and view all the answers

    What is the recommended action for solid chemical spills in a laboratory?

    <p>Brush the solid spills into a dustpan and deposit in the garbage</p> Signup and view all the answers

    When should vents above a lab bench be lowered for maximum effectiveness?

    <p>Over the area where fumes are produced</p> Signup and view all the answers

    What is the proper procedure for dealing with an acid spill in a laboratory?

    <p>Neutralize the spill with a solid acid neutralizer and sweep up the residue</p> Signup and view all the answers

    What should be done with broken glass in a laboratory setting?

    <p>Deposit in the garbage</p> Signup and view all the answers

    Why is it important to keep chemicals separate in a laboratory setting?

    <p>To prevent chemical reactions from occurring</p> Signup and view all the answers

    What is the appropriate way to dispose of soluble cyanides?

    <p>Convert to non-toxic cyanates using bleach</p> Signup and view all the answers

    How should lead, cadmium, and antimony salts be disposed of?

    <p>Convert to insoluble sulfides and bury in landfill</p> Signup and view all the answers

    What is the recommended method for destroying peroxides?

    <p>Shake with sodium metabisulfite solution</p> Signup and view all the answers

    How should strong oxidizing agents be rendered safe for disposal?

    <p>Reduced with 10% sodium bisulfite and then flushed down the drain</p> Signup and view all the answers

    What should be done with silver & nickel wastes according to the text?

    <p>Recover and reuse</p> Signup and view all the answers

    How are organic solvents typically stored in laboratories?

    <p>Stored in glass or metal containers in the fumehood</p> Signup and view all the answers

    What is the recommended method for disposing non-hazardous solids?

    <p>. Disposing of in the regular garbage</p> Signup and view all the answers

    How should acids & bases be neutralized before disposal?

    <p>Mixed together to neutralize, tested with litmus paper, and then flushed down sink with large amounts of water</p> Signup and view all the answers

    How can lead, cadmium, and antimony salts be made safe for disposal?

    <p>Converted to insoluble sulfides</p> Signup and view all the answers

    What is an appropriate method for disposing silver & nickel wastes?

    <p>Recover and reuse</p> Signup and view all the answers

    What term best describes materials that ignite spontaneously upon exposure to air?

    <p>Pyrophoric materials</p> Signup and view all the answers

    Which type of fire extinguisher is most suitable for fires involving halogenated hydrocarbons?

    <p>Dry chemical fire extinguisher</p> Signup and view all the answers

    What is the purpose of Met-L-X in laboratory safety?

    <p>Extinguishing combustible metal fires</p> Signup and view all the answers

    In a laboratory setting, which type of fire is wet chemical fire extinguishers most effective against?

    <p>Class K fires (cooking oils)</p> Signup and view all the answers

    Why are organic solvents typically stored in flammable storage cabinets in laboratories?

    <p>To minimize the risk of fire</p> Signup and view all the answers

    What specific charges were the defendants in the UCLA case facing in relation to the death of Sheharbano Sangji?

    <p>Violating fire safety protocols</p> Signup and view all the answers

    How did Richard Harran describe Sheri Sangji's death?

    <p>A shocking event resulting from severe burns</p> Signup and view all the answers

    In what context was Sangji's abdominal wall burned off?

    <p>Handling t-butyllithium without proper safety gear</p> Signup and view all the answers

    What role did Sheri Sangji have at the time of the lab accident?

    <p>Research Assistant</p> Signup and view all the answers

    What was the cause of Michele Dufault's passing at Yale University?

    <p>Hair Entanglement in Machinery</p> Signup and view all the answers

    What is the primary purpose of Met-L-X, as mentioned in the text?

    <p>Extinguishing fires caused by flammable metals</p> Signup and view all the answers

    In the context of the text, what is Halotron commonly used for in laboratory settings?

    <p>Extinguishing fires without leaving any residue</p> Signup and view all the answers

    What is the recommended action when facing a fire involving wet chemicals in a laboratory?

    <p>Evacuate the area and then call emergency services</p> Signup and view all the answers

    What is the function of a wet chemical extinguisher in laboratory safety?

    <p>Extinguishing fires involving electrical equipment</p> Signup and view all the answers

    In the context of laboratory safety, what do Halogenated Hydrocarbons primarily refer to?

    <p>Compounds that can be toxic when inhaled</p> Signup and view all the answers

    What is the consequence when incompatible chemicals react in a laboratory setting, as described in the text?

    <p>They lead to a flash and smoke, possibly sparking a fire.</p> Signup and view all the answers

    Based on the text, what safety measure was not followed that led to the chemical reaction in the lab?

    <p>Proper storage of chemicals</p> Signup and view all the answers

    In the incident described, what was the immediate result of adding a solvent to nitric acid?

    <p>Formation of a flash and smoke</p> Signup and view all the answers

    What was the primary reason for the guard and two students being treated after the chemical reaction in the lab?

    <p>Exposure to a plume of vapors</p> Signup and view all the answers

    What was indicated as access requirements for Yale's state-of-the-art machine shop where the incident occurred?

    <p>Completion of a shop course</p> Signup and view all the answers

    What is the correct procedure to follow when heating flammable materials in a laboratory setting?

    <p>Heat the material using a Bunsen burner in a fume hood</p> Signup and view all the answers

    What is the safest approach for disposing of solid chemical spills in a laboratory?

    <p>Use proper spill kits and follow the specific disposal instructions for each chemical spilled</p> Signup and view all the answers

    What is the recommended method for neutralizing acids and bases before disposal in a laboratory?

    <p>Add water to acids and bases slowly while stirring, then dispose following guidelines</p> Signup and view all the answers

    What type of personal protective equipment (PPE) should be worn when handling wet chemicals in a laboratory?

    <p>Gloves, long lab coat, safety glasses, close-toed shoes</p> Signup and view all the answers

    What is the appropriate way to dispose of soluble cyanides in a laboratory environment?

    <p>Follow specific disposal guidelines for hazardous waste when dealing with soluble cyanides</p> Signup and view all the answers

    What type of fire are wet chemical fire extinguishers most effective against?

    <p>Class B fires</p> Signup and view all the answers

    What is the purpose of Met-L-X in laboratory safety?

    <p>To extinguish fires caused by combustible metals</p> Signup and view all the answers

    What term best describes the materials that belong to the pyrophoric class?

    <p>Flammable</p> Signup and view all the answers

    In a laboratory setting, which type of fire extinguisher is most suitable for fires involving halogenated hydrocarbons?

    <p>Dry chemical fire extinguishers</p> Signup and view all the answers

    Why should vents above a lab bench be lowered for maximum effectiveness?

    <p>To ensure proper ventilation over the fume-producing area</p> Signup and view all the answers

    What is the recommended procedure for disposing of lead, cadmium, and antimony salts in a laboratory setting?

    <p>Convert to insoluble sulfides and bury in a landfill</p> Signup and view all the answers

    Which method is suggested for rendering peroxides safe for disposal in a laboratory?

    <p>Shaking with sodium metabisulfite solution</p> Signup and view all the answers

    What is the appropriate way to dispose of soluble cyanides according to the text?

    <p>React with bleach to form non-toxic cyanates</p> Signup and view all the answers

    How are strong oxidizing agents like potassium permanganate and sodium chlorate rendered safe for disposal?

    <p>Neutralized with 10% sodium bisulphite</p> Signup and view all the answers

    What is the purpose of Met-L-X mentioned in the text regarding laboratory safety?

    <p>To extinguish metal fires</p> Signup and view all the answers

    Which class of materials belong to pyrophoric substances according to the text?

    <p>Materials that ignite upon exposure to air</p> Signup and view all the answers

    What type of fire are wet chemical fire extinguishers most effective against in a laboratory setting?

    <p>Flammable liquid fires</p> Signup and view all the answers

    How should acids and bases be neutralized before disposal according to the information provided?

    <p>Neutralized, tested with litmus paper, and then flushed down sink</p> Signup and view all the answers

    How should organic solvents like diethyl ether and toluene typically be stored in laboratories?

    <p>In metal containers within a fumehood</p> Signup and view all the answers

    More Like This

    Lab Safety Protocols
    5 questions

    Lab Safety Protocols

    BestKnownWisdom avatar
    BestKnownWisdom
    Laboratory Safety and Rules in Analytical Chemistry Lab
    4 questions

    Laboratory Safety and Rules in Analytical Chemistry Lab

    HeartfeltCommonsense7116 avatar
    HeartfeltCommonsense7116
    Lab Safety Guidelines
    18 questions

    Lab Safety Guidelines

    EasedFuturism avatar
    EasedFuturism
    Analytical Chemistry Tools and Laboratory Safety
    5 questions

    Analytical Chemistry Tools and Laboratory Safety

    ExpansiveCosine avatar
    ExpansiveCosine
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser