231 Safety
Read the Safety Data Sheet (click SDS icon below) of hydrogen peroxide to identify the recommended way to store this substance. Select one: -In a tightly closed container in a dry and well-ventilated place -In a well-ventilated container in a closed, dry area -In a glass, leak-proof bottle on a shelf or cabinet -In an open container in a bright and humid environment
(1)
Determine where to dispose of each type of waste. -syringe tips -broken flask -titrant solution -unused solid reagent
-syringe tips: sharps container -broken flask: box lined with puncture resistant bag -titrant solution: nalgene bottle with cap -unused solid reagent: solid waste container
Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ______, and then, _____. Then insert ____ b/t the interior edge of the second glove and the skin, and remove the second glove
grasp the exterior of one glove with a gloved hand; peel off the first glove; a bare finger
Blue: 2 Red: 4 Yellow: 0 White: COR
has a flashpoint below room temperature
Blue: 2 Red: 3 Yellow: 0 White:
stable, has health risks but no special hazards
Determine when to put on disposable gloves for work in the lab. Select one: -Before handling any glassware or chemicals for the experiment -After setting up all the glassware but before handling chemicals -After cleaning all the glassware for the experiment -Before entering the laboratory room
(1)
Determine when you should remove your goggles in the lab room. Select one: -When everyone in the room is done handling any chemicals or glassware -Whenever your goggles become foggy or uncomfortable -When you have finished cleaning up your chemicals and glassware -Whenever you need to lean in close to get a volume reading
(1)
Identify the precautions to take with exits in the lab. Select one or more: -Do not block a door with an EXIT sign. -Make sure lab windows are always open. -Keep the exit door locked at all times. -Locate the exits prior to the start of lab.
(1) and (4)
What are the best practices for safely handling waste in the lab? Select one or more: -Always wear appropriate Personal Protective Equipment. -Place any paper towels from the clean-up in the trash. -Remove gloves for better manipulation of the waste containers. -Check labels or instructions before any disposal.
(1) and (4)
What should you do every time before you leave the lab? Select one or more: -Remove your labcoat, if you are wearing one. -Wash your hands. -Remove your gloves. -Turn off the lights.
(1)-(3)
Which steps are necessary for cleaning a spill involving broken glass? Select one or more: -Stop the spread of the spill. -Soak up any spilled liquid with absorbent material. -Pick up large pieces of glass with gloved hands. -Wash off the broken glass for recycling.
(1)-(3)
Read each statement regarding food and beverages in the lab and determine if each is true or false. -Tobacco products of all kinds are prohibited in lab. -Food items should not be brought into the lab. -Chewing gum is okay in the lab as long as you don't blow bubbles. -Beverages are allowed in lab as long as they are in containers with lids.
(1): T (2): T (3): F (4): F
Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once. -While checking on a stirring solution, the solution splashes up towards your face. -While picking up a buret, an unknown solution left by a previous solution drips onto your hand. -While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor. -While transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench.
(1): goggles (2): gloves (3): closed-toe shoes (4): lab coat
Determine the safest option in the lab if you need your vision to be corrected. Select one: -Wear safety goggles while working and switch to corrective glasses when you need to read something -Wear corrective glasses or lenses under your safety goggles for the whole experiment, but always check with your TA or Instructor for your school's policy -Wear your corrective glasses or lenses as normal for the whole experiment -Wear safety goggles without any corrective lenses for the whole experiment
(2)
What is generally the best approach when liquid from a large reagent bottle is needed in an experiment? Select one: -Insert a pipet into the reagent bottle as many times as needed to get the desired amount of liquid. -Pour some of the reagent from the bottle into a beaker, then use as needed in the procedure. -Dispense the liquid directly from the reagent bottle whenever it is needed. -Pour liquids directly from a reagent bottle only when a funnel is placed securely underneath.
(2)
What is the first step for response to an emergency situation? Select one: -Discuss the situation with the other students until everyone agrees on what to do. -Remain calm and quiet, gather information, and assess the situation. -Yell for help and assist with the evacuation of the lab. -Run outside the building as quickly as possible and call 911.
(2)
Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab? Select one: -The chemical bottle labels -Your lab partner -Your instructor's directions -The chemical Safety Data Sheets
(2)
Why should Bunsen burners not be used when heating organic materials? Select one: -Organic materials should never be heated. -Many organic materials are flammable and could cause a fire. -Organic materials need more heat than provided by the Bunsen burner. -Organic materials cause Bunsen burners to malfunction.
(2)
What should you do after finishing work with a reagent bottle? Select one or more: -Leave the bottle open in case someone else needs it. -Close the bottle. -Place the bottle in the Solid Waste container. -Return the bottle to its proper storage location.
(2) and (4)
What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance? Select one or more: -Literature examples of use of the substance -Identification and description of substance -Personal protection and first aid recommendations -Hazard warnings -Handling, storage, and reactivity information
(2)-(5)
When should lab participants look at the Safety Data Sheet (SDS) of a substance? Select one: -Only if the substance is perceived to be dangerous -After completing work with the substance -Before using the substance -While working with the substance in lab
(3)
When should you start a new chemical waste container in the lab? Select one: -When you accidentally spill chemicals down the side of the current container -When the contents of the current container completely fill the container to the brim -When the contents of the current container are a couple inches below the brim of the container -When you need to dispose of another chemical that is compatible with chemicals in the current container
(3) (i think)
In lab, you may need to evaluate the odor or smell of a chemical. What is the best way to smell a chemical sample? Select one: -Put your head in a fume hood as you heat the sample in it. -Vigorously shake the sample until the smell travels to you. -Hold the sample under your nose and slowly sniff. -Use your hand to gently waft the smell toward you.
(4)
Most laboratory chemical spills are cleaned up in a similar manner, but acid and base spills require an extra step. What is this extra step? Select one: -Be sure to replace the spilled acid or base. -Tell all other lab participants to evacuate the lab as quickly as possible. -Alert the proper authorities about the corrosive chemical waste. -Neutralize the spill before cleaning it up.
(4)
What information does not need to be included on a chemical waste label? Select one: -The date the waste container was filled completely -Names of the chemical compounds present in the container -Relative amounts of chemical compounds in the container -A description of the experiment the chemicals were used for
(4)
Identify the safety equipment designed to deal with each emergency listed. -cuts or minor burns -large fire on the benchtop -fire on a person -chemicals on clothes -chemicals in eyes
-first aid kit -fire extinguisher -fire blanket -safety shower -eyewash station
Determine the best way to deal with each of the following items that may dangle into the way during lab work. -loose bracelets -long hair -flowy sleeves -long necklaces -long earrings
-loose bracelets: remove -long hair: tie back/secure -flowy sleeves: tie back/secure -long necklaces: remove -long earrings: remove
What information is needed in order to be prepared for an emergency? Select one or more: -Understanding of where to go should an emergency occur -Full inventory of all chemicals present in the lab -Location of lab phone and first aid kit -Contact information for emergency personnel -Location of all exits
all except (2)
Know: NFPA diamond gas cylinder safety shower eyewash station exit
kk
Most chemicals can be cleaned up with a general spill kit, but a few chemicals require specialized spill procedures. For each substance listed, determine whether a general spill kit is sufficient or if a specialized spill kit is needed. mercury acetone phosphoric acid hydrofluoric acid methanol
mercury: special acetone: general phosphoric acid: general hydrofluoric acid: special methanol: general
Blue: 3 Red: 0 Yellow: 2 White:
moderately unstable or reactive
It is often helpful to remember the acronym PASS when using a fire extinguisher. Fill in the word that corresponds with each letter to complete the steps needed for operation of this device.
P: pull the pin A: aim the nozzle at the base of the fire S: squeeze the lever slowly S: sweep the spray from side to side over the fire
When an alarm sounds in the laboratory, it is important to respond ____ and remain ________. Listen for any other instructions, turn off any ________ in use, and be prepared to leave immediately.
calmly; quiet; equipment
If you drop or break glassware in lab, first ________. Then, _______ Finally, place all that material into the ________
get thick gloves or dustpan; carefully collect all the broken glassware; broken glass container
Blue: 3 Red: 0 Yellow: 0 White: OX
oxidizer, not flammable
The bin the aq and orangic waste containers are in is called the:
secondary container
Move to the safety shower if you spill hazardous chemicals on your _______. Stand under the shower and _________ the lever. Remove clothing and continue flushing the area for _______
skin or clothing; pull; 15 minuets
