Lab Safety CHY3402

What is the most appropriate attire when working in a laboratory?

• T-shirt and shorts

• Sandals and flip-flops

• Lab coat, safety goggles, and closed-toe shoes

Which of the following is true about eating or drinking in the lab?

• It is allowed as long as you are careful not to spill

• It is strictly prohibited at all times

• It is allowed during non-experimental periods

• It is allowed in designated areas of the lab

3. ____________are substances that disintegrate or degrade other materials on contact by way of chemical action.

• Corrosives
• Toxic

• Irritants

Carcinogens are substances _____________.

• which can cause irritation to skin

• that poisonous, can cause serious harm to health and even death

• that can cause irreversible injuries at the site of contact

• which have potential to cause cancer.

How should you dispose of chemicals after an experiment?

• Pour them down the sink

• Follow the proper waste disposal guidelines provided by your instructor

• Leave them on the lab bench for someone else to deal with

• Store them in your lab drawer for future use
  

What is the primary purpose of a fume hood in the laboratory?

• To store chemicals safely

• To provide extra space for equipment storage

• To contain and exhaust harmful vapors and fumes

• To keep the lab temperature regulated

What should you do if you accidentally spill a chemical on your skin or clothing?

• Ignore it, as it is not harmful

• Wash the affected area with water for at least 30 seconds

• Continue working and clean it up later

• Use a cloth to wipe it off immediately

What should you do if you accidentally break a mercury thermometer in the lab?

• Use your hands to pick up the broken glass and mercury

• Pour water over the mercury to clean it up

• Call for help and leave the area immediately

• Ignore the spill and continue working

The correct procedure for combining acid and water

• Add acid to water

• Add water to acid.

What must you do before you are allowed to enter the laboratory?

• Skim over the procedure

• Practice using the equipment on the front counter

• Thoroughly read the procedure and complete the pre-lab assignment