Lab Safety, Glassware & Equipment, and Basic Lab Techniques – CHEM 1206

Fill-in-the-blank flashcards covering key definitions, safety rules, first aid, equipment identification, and basic techniques from the CHEM 1206 laboratory lecture.

According to the Chemistry Law of the Philippines (), a chemical laboratory is a facility where chemical analysis and synthesis are performed.

RA 10657

The two primary reasons for proper chemical laboratory management are and quality assurance.

safety

The University lab explosion is an example of an accident caused by neglecting safety.

Texas Tech

Karen Wetterhahn’s fatal exposure involved the highly toxic compound .

dimethylmercury

A major fire razed the Institute of Chemistry at Diliman.

UP

National Building Code of the Philippines is legally cited as .

RA 6541

The Code of Sanitation of the Philippines is legally cited as .

PD 856

A laboratory should be well-lit, well-ventilated, and provide at least m² of space per student.

1

Flooring in a laboratory should be to prevent slips.

non-slip

Gas cylinders should be enclosed and set the laboratory.

outside

The internationally agreed-upon system for chemical hazard classification is the (abbrev.).

GHS

Under GHS, the pictogram showing a flame represents a hazard.

flammable

The GHS symbol with a test tube dripping onto a hand and metal indicates a hazard.

corrosive

Safety information for a chemical is detailed in an (full name).

Material Safety Data Sheet

One section of an MSDS that lists how to handle spills is called procedures.

spill/leak

General safety: Always wear when working in the lab.

personal protective equipment

General safety: Long must be tied back while working in the laboratory.

hair

General safety: Never wear -toed shoes in the lab.

open

Remove before touching doorknobs, phones, or keyboards.

gloves

Expect to use pairs of gloves during one lab period.

several

You must know the location of fire extinguishers, eye-wash stations, showers, and the kit.

first-aid

Keep burners in the of the lab table, not on the edge.

middle

When heating a test tube, always point the open end from yourself and others.

away

To prevent bumping during boiling, add to the liquid.

boiling chips

Always add concentrated acids or bases water, never the reverse.

to

General rule: Never put anything (including food or gum) in your while in the lab.

mouth

Solid wastes like paper go in the trash, in the sink.

never

When transferring liquid reagent, first pour into a , then pipet from there.

beaker

Excess reagent should be returned to the stock bottle unless instructed.

not

First aid: For cuts, wash with soap and water, apply pressure, disinfect, and cover with a dressing.

waterproof

First aid: Heat burns should immediately be immersed in .

cold water

First aid: Neutralize an acid burn on skin with .

sodium bicarbonate

First aid: Chemical eye injury from an acid is treated by washing then neutralizing with 5% .

sodium bicarbonate

If an alkali (base) is swallowed, neutralize by drinking juice or 5% acetic acid.

lemon

A clear cylindrical tube used to hold small amounts of chemicals during experiments is called a .

test tube

Multiple test tubes are held upright by a .

test-tube rack

A device used to produce vacuum via the Venturi effect is an .

aspirator

The high-temperature cup-shaped vessel used for heating compounds is a .

crucible

To crush solid chemicals into fine powder, use a and .

mortar; pestle

Hot crucibles are handled with tongs.

crucible

A beaker or flask is supported over a burner by resting on placed on a tripod.

wire gauze

The conical flask ideal for mixing and swirling liquids is called an flask.

Erlenmeyer

A flask calibrated to contain a precise volume is known as a flask.

volumetric

Liquid volumes are most commonly measured with graduated cylinders, pipettes, burettes, and flasks.

volumetric

A narrow-neck device used to channel liquids safely is a .

funnel

A small concave glass dish for evaporation or covering beakers is a .

watch glass

A solid glass stick used to stir solutions is called a .

glass rod

Tiny amounts of liquids can be transferred dropwise using a .

dropper

A burette is especially used for delivering known volumes of liquid during .

titrations

Glassware is held above a burner by a stand and sometimes a tripod.

ring

An airtight container with a drying agent used to keep samples moisture-free is a .

desiccator

When heating a beaker, it should rest on wire gauze on a stand.

tripod

Filter paper cones should not be filled more than -thirds to avoid overflow.

two

Pipettes and burettes are calibrated to a specific volume at a given temperature.

deliver

Because aqueous solutions wet glass, the meniscus observed in volumetric glassware is .

concave