lab safety test Flashcards
examples of combustible materials:
alcohol, carbon disulfide, acetone
beakers can be used to …. materials and to ….
mix; estimate volume
mortar and pestle (porcelain) may be used to … and … to a powder
grind crystals; lumpy chemicals
crucible and cover (porcelain): used to … small amounts of …. at …
heat; solid substances; high temperatures
crucible can be used to get rid of …. in a …
water; solid substance
watch glass (glass) used to cover an … or ….; if a substance is escaping from either of these, the watch glass will help to … it and make data more …
evaporating dish; beaker; retain; accurate
evaporating dish (porcelain) used to contain small volumes of …..; used to separate a solid from … in a ….
liquid being evaporated; water; homogenous solution
pneumatic trough: used in experiment in which a gas is …. by water ….
collected; displacement
Florence flask (glass): may be …, used in … and for …. solutions;
heated; making; storing
the shape of the Florence flask allows for efficient …., …., as well as ….
heating; boiling; stirring
wide mouth collection bottle (glass): used with …;
pneumatic trough
plastic wash bottle (plastic): squeeze sides to dispense …; used to wash ….
water; lab glassware
dropper pipet (glass tip with rubber bulb) used to transfer small….; enables one to make a …. accurate in a graduated cylinder (for example)
volumes of liquid; measurement
funnel (glass/plastic): can be used to …. a mixture by means of …; can also be used to …. to small mouthed containers
separate; filtration; transfer chemicals
ring stand: metal rod fixed upright in a heavy metal base; has many uses as a …; used to …. lab equipment
support; hold/clamp
stirring with thermometer → If glass
no
Erlenmeyer flask (glass): may be …, used in …. in which the … of an unknown solution is discovered through using another solution
heated; titrations; concentration
safety goggles: must be worn at ….; used to prevent dangerous chemicals such as …. or …. from splashing into eyes
all times; acids; bases
rubber stoppers: used to plug … and …. to prevent …/… from ….
flasks; test tubes; liquids/gases; escaping their containers
glass rod with nichrome wires: used in …
flame tests
test tube holder: (spring metal), used to hold … or …., particularly when these containers are at ….
test tubes; glass tubing; extreme temperatures
clay triangle: wire frame with porcelain supports, used to support a …; can also be used to support a …. when filtration lasts for a lengthy time
crucible; funnel