chem lab - safety quiz 1

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

A description of the experiment the chemicals were used for

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

Before handling any glassware or chemicals for the experiment

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

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

Determine which of the following statements is true.

Students are not permitted, at any time, to work alone in lab.

Move to the safety shower if you spill hazardous chemicals on your skin or clothing. Stand under the shower and pull the lever. Remove clothing and continue flushing the area for

15 minutes

What should you do after finishing work with a reagent bottle?

Close the bottle. Return the bottle to its proper storage location.

What is the last step of any spill cleanup procedure?

Wipe down the affected area with detergent and water

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.

Pull - the pin Aim- nozzle at base of fire Squeeze- lever slowly Sweep - spray side to side

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

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

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

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

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

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

Which steps are necessary for cleaning a spill involving broken glass?

Stop the spread of the spill. Soak up any spilled liquid with absorbent material. Pick up large pieces of glass with gloved hands.

When an alarm sounds in the laboratory, it is important to respond calmly and remain quiet. Listen for any other instructions, turn off any _______ and be prepared to leave immediately.

equipment

What information is needed in order to be prepared for an emergency?

Understanding of where to go should an emergency occur Location of all exits highlight_offinfo Location of lab phone and first aid kit Contact information for emergency personnel

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.

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

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.