Untitled Quiz

Questions and Answers

In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station?

Until the irritation is gone

30 minutes

5 minutes

15 minutes (correct)

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 minutes

Identify the equipment best suited for extinguishing each type of fire:

Small benchtop fire = Overturned beaker Large fire on floor = Fire extinguisher Clothing fire = Fire blanket

Identify the precautions to take with exits in the lab.

Do not block a door with an EXIT sign. Signup and view all the answers

Which signs are typically posted in areas of active lab work?

Safety equipment signs Signup and view all the answers

What is the main precaution to take if a Gas Cylinder sign is present in the lab?

Visually check that the gas cylinder is restrained but keep a safe distance from it. Signup and view all the answers

Identify the step that is NOT recommended when responding to an emergency.

Gather your belongings. Signup and view all the answers

What is the first step for response to an emergency situation?

Remain calm and quiet, gather information, and assess the situation. Signup and view all the answers

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 Signup and view all the answers

In lab, you may need to evaluate the odor or smell of a chemical. What is the best way to smell a chemical sample?

Use your hand to gently waft the smell toward you. Signup and view all the answers

A student removes a chemical sample from a reagent bottle to be used in an experiment. What should he do with any excess chemical remaining from this sample after the experiment is complete?

Check and see if anyone else can use the chemical. If not, discard in the proper waste container. Signup and view all the answers

Using the letters on the image, identify the significance of each section on the NFPA diamond.

A (blue)-- health, B (red)-- flammability, C (yellow)-- reactivity, D (white)-- special hazards Signup and view all the answers

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 -- special Signup and view all the answers

How should spill cleaning materials be discarded?

Seal in a labeled plastic bag, then place in the solid waste container. Signup and view all the answers

Fill in the words to complete each step in liquid spill cleanup.

<ol> <li>Surround the area with absorbent material, then cover the spill. 2. Scoop up the material and place in a plastic bag. 3. Place the bagged waste in a solid waste container. 4. Wipe down the area with detergent and water.</li> </ol> Signup and view all the answers

Review the Safety Data Sheet (SDS) for potassium hydroxide, then identify the best course of action for each type of chemical exposure.

In case of skin contact -- Take off any contaminated clothing and rinse thoroughly. Signup and view all the answers

When should lab participants look at the Safety Data Sheet (SDS) of a substance?

Before using the substance Signup and view all the answers

What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?

Hazard warnings Signup and view all the answers

If you drop or break glassware in lab, first ____. Then, _. Finally, place all that material into the ______.

get thick gloves or a dustpan...carefully collect all the broken glassware...broken glass container Signup and view all the answers

Using the letters on the image, identify each component of the liquid waste set-up.

A-- funnel, B-- primary container, C-- waste label, D-- secondary container Signup and view all the answers

Determine where to dispose of each type of waste.

Broken flask -- Sharps container Signup and view all the answers

Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?

Your lab partner Signup and view all the answers

What information does not need to be included on a chemical waste label?

A description of the experiment the chemicals were used for Signup and view all the answers

What are the best practices for safely handling waste in the lab?

Always wear appropriate Personal Protective Equipment. Signup and view all the answers

When should you start a new chemical waste container in the lab?

When the contents of the current container are a couple of inches below the brim of the container Signup and view all the answers

Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ____, and then, _. Then insert _____ between 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 Signup and view all the answers

Determine the best way to deal with each of the following items that may dangle into the way during lab work.

Long hair -- Tie back or secure Signup and view all the answers

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 picking up a buret, an unknown solution left by a previous solution drips onto your hand. = Gloves While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor. = Closed-toe shoes While transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench. = Lab coat While checking on a stirring solution, the solution splashes up towards your face. = Goggles Signup and view all the answers

What should you do every time before you leave the lab?

Remove your gloves. Signup and view all the answers

Determine which items of personal protective equipment (PPE) you will likely use in a general chemistry lab.

(Latex) gloves Signup and view all the answers

Determine when to put on disposable gloves for work in the lab.

Before handling any glassware or chemicals for the experiment Signup and view all the answers

Determine the safest option in the lab if you need your vision to be corrected.

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 Signup and view all the answers

Determine when you should remove your goggles in the lab room.

When everyone in the room is done handling any chemicals or glassware Signup and view all the answers

Chewing gum is okay in the lab as long as you don't blow bubbles.

False Signup and view all the answers

Tobacco products of all kinds are prohibited in the lab.

True Signup and view all the answers

Beverages are allowed in the lab as long as they are in containers with lids.

False Signup and view all the answers

Food items should not be brought into the lab.

True Signup and view all the answers

Under what conditions should a student inform the instructor of a lab injury?

The instructor must be informed of all laboratory injuries. Signup and view all the answers

Study Notes

Emergency Procedures

Eyes should be flushed at eyewash station for 15 minutes after chemical contact.
If hazardous chemicals spill on skin or clothing, move to the safety shower, pull the lever, and continue flushing for 15 minutes.
In case of an emergency, remain calm, gather information, and assess the situation before taking action.
When alarm sounds, respond calmly and quietly, listen for instructions, and turn off any equipment in use.

Fire Safety Equipment

Small benchtop fire should be dealt with using an overturned beaker.
A fire extinguisher is best for large fires on the floor.
Utilize a fire blanket for clothing fires.

Laboratory Safety Precautions

Locate exits before starting lab work; do not block doors with EXIT signs.
Signs for active lab work include PPE signs, chemical storage signs, and safety equipment signs.
Always conduct a visual check of any gas cylinder sign, ensuring it is restrained.

Handling Chemicals and Waste

Excess chemicals after use should be checked for others' interest; if not needed, discard in the proper waste container.
Use a general spill kit for common chemicals; others like mercury and hydrofluoric acid require specialized procedures.
Cleaning materials from spills should be sealed in a labeled plastic bag and placed in a solid waste container.

Personal Protective Equipment (PPE)

Essential PPE includes gloves, goggles, and lab coats.
Remove gloves and wash hands before leaving the lab to minimize chemical spread.
Long hair must be secured, and loose items like bracelets and necklaces should be removed during lab work.

Safety Data Sheets (SDS)

Consult the SDS before using a substance to understand hazards and personal protection methods.
Common information in an SDS includes hazard warnings, chemicals identification, and proper handling or storage practices.

Waste Disposal Guidelines

Unused solid reagents should go in a solid waste container; broken flasks require a sharps container.
Chemical waste labels should include names and amounts of chemicals, but not the description of experiments.

General Lab Safety Rules

Do not eat or drink in the lab; all food and beverages must be prohibited to maintain safety.
Notify instructors of all lab injuries, regardless of perceived severity.
Handle waste correctly and check compatibility before adding chemicals to the same container.

Guidelines for Smelling Chemicals

Waft the odor of chemicals using your hand rather than directly sniffing the sample to avoid inhaling harmful substances.

Handling Glassware

If glassware breaks, wear thick gloves or use a dustpan to carefully collect pieces and dispose of them in a broken glass container.

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Untitled Quiz

Questions and Answers

In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station?

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 _________.

Identify the equipment best suited for extinguishing each type of fire:

Identify the precautions to take with exits in the lab.

Which signs are typically posted in areas of active lab work?

What is the main precaution to take if a Gas Cylinder sign is present in the lab?

Identify the step that is NOT recommended when responding to an emergency.

What is the first step for response to an emergency situation?

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.

In lab, you may need to evaluate the odor or smell of a chemical. What is the best way to smell a chemical sample?

A student removes a chemical sample from a reagent bottle to be used in an experiment. What should he do with any excess chemical remaining from this sample after the experiment is complete?

Using the letters on the image, identify the significance of each section on the NFPA diamond.

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:

How should spill cleaning materials be discarded?

Fill in the words to complete each step in liquid spill cleanup.

Review the Safety Data Sheet (SDS) for potassium hydroxide, then identify the best course of action for each type of chemical exposure.

When should lab participants look at the Safety Data Sheet (SDS) of a substance?

What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?

If you drop or break glassware in lab, first ________. Then, _______. Finally, place all that material into the ________.

Using the letters on the image, identify each component of the liquid waste set-up.

Determine where to dispose of each type of waste.

Which is NOT a good source of information about the hazards that affect waste disposal in a chemistry lab?

What information does not need to be included on a chemical waste label?

What are the best practices for safely handling waste in the lab?

When should you start a new chemical waste container in the lab?

Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ________, and then, _________. Then insert _________ between the interior edge of the second glove and the skin, and remove the second glove.

Determine the best way to deal with each of the following items that may dangle into the way during lab work.

Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once.

What should you do every time before you leave the lab?

Determine which items of personal protective equipment (PPE) you will likely use in a general chemistry lab.

Determine when to put on disposable gloves for work in the lab.

Determine the safest option in the lab if you need your vision to be corrected.

Determine when you should remove your goggles in the lab room.

Chewing gum is okay in the lab as long as you don't blow bubbles.

Tobacco products of all kinds are prohibited in the lab.

Beverages are allowed in the lab as long as they are in containers with lids.

Food items should not be brought into the lab.

Under what conditions should a student inform the instructor of a lab injury?

Study Notes

Emergency Procedures

Fire Safety Equipment

Laboratory Safety Precautions

Handling Chemicals and Waste

Personal Protective Equipment (PPE)

Safety Data Sheets (SDS)

Waste Disposal Guidelines

General Lab Safety Rules

Guidelines for Smelling Chemicals

Handling Glassware

Studying That Suits You

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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 _____.

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.

If you drop or break glassware in lab, first ____. Then, _. Finally, place all that material into the ______.

Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, ____, and then, _. Then insert _____ between the interior edge of the second glove and the skin, and remove the second glove.