Lab Safety Quiz

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

Always wear appropriate Personal Protective Equipment. Check labels or instructions before any disposal.

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

Gather your belongings.

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

Sign prohibiting food and drink Personal protective equipment (PPE) sign Chemical storage signs Safety equipment signs

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

A description of the experiment the chemicals were used for

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

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

A: health B: flammability C: reactivity D: special hazards

What is generally the best approach when liquid from a large reagent bottle is needed in an experiment?

Pour some of the reagent from the bottle into a beaker, then use as needed in the procedure.

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

The instructor must be informed of all laboratory injuries.

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

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

Remove your gloves. Wash your hands. Remove your labcoat, if you are wearing one.

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

Before handling any glassware or chemicals for the experiment

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

Remain calm and quiet, gather information, and assess the situation.

Read the Safety Data Sheet (SDS) (click the SDS icon below) of hydrogen peroxide to identify the type of eye protection recommended when handling this substance.

Wrong Ans: safety glasses

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

Your lab partner

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.

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

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

When everyone in the room is done handling any chemicals or glassware

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

When the contents of the current container are a couple inches below the brim of the container

What is the last step of any spill cleanup procedure?

Wipe down the affected area with detergent and water.

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 transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench. __________ While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor._____________

goggles gloves lab coat closed-toe shoes

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

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

lab coat, gloves, goggle

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.

methanol: general acetone: general mercury: special phosphoric acid: general hydrofluoric acid: special

Identify the section in which each type of information can be found on a Safety Data Sheet. recommendations in case of accidental contact with the chemical _________ incompatibility or reactivity with other chemicals ____________ possible dangers and health effects___________ recommended personal protective equipment (PPE) ____________ chemical name and formula __________

Frist Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Identification

Identify the types of information that are necessary to communicate with emergency responders.

Any other hazards present in the lab Any chemicals involved in an incident How the incident happened

Review the Safety Data Sheet (SDS) (click the SDS icon below) for hydrogen peroxide, 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 thorughly In case of eye contact: rinse with wter for 15 minutes If inhaled: move person to fresh air If swallowed: rinse mouth with water

All lab participants must remain prepared to use safety equipment in case of emergency. Identify the components of effective preparation.

Knowing what safety equipment is available Understanding where the safety equipment is located Being familiar with how safety equipment is used

Determine where to dispose of each type of waste. titrant solution: broken flask: unused solid reagent: syringe tips:

Nalgene bottle with cap Box lined with puncture resistant bag Solid waste container Sharps container

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?

Neutralize the spill before cleaning it up.

Read each statement regarding food and beverages in the lab and determine if each is true or false. Beverages are allowed in lab as long as they are in containers with lids. ________ Tobacco products of all kinds are prohibited in lab. _______ Chewing gum is okay in the lab as long as you don't blow bubbles. __________ Food items should not be brought into the lab. ______

false true false true

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

Determine the best way to deal with each of the following items that may dangle into the way during lab work. long hair: flowy sleeves: loose bracelets long necklaces long earrings

tie back or secure tie back or secure remove remove remove