lab safety test Flashcards Preview

AP Chemistry > lab safety test > Flashcards

Flashcards in lab safety test Deck (55):
1

examples of combustible materials:

alcohol, carbon disulfide, acetone

2

beakers can be used to .... materials and to ....

mix; estimate volume

3

mortar and pestle (porcelain) may be used to ... and ... to a powder

grind crystals; lumpy chemicals

4

crucible and cover (porcelain): used to ... small amounts of .... at ...

heat; solid substances; high temperatures

5

crucible can be used to get rid of .... in a ...

water; solid substance

6

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

7

evaporating dish (porcelain) used to contain small volumes of .....; used to separate a solid from ... in a ....

liquid being evaporated; water; homogenous solution

8

pneumatic trough: used in experiment in which a gas is .... by water ....

collected; displacement

9

Florence flask (glass): may be ..., used in ... and for .... solutions;

heated; making; storing

10

the shape of the Florence flask allows for efficient ...., ...., as well as ....

heating; boiling; stirring

11

wide mouth collection bottle (glass): used with ...;

pneumatic trough

12

plastic wash bottle (plastic): squeeze sides to dispense ...; used to wash ....

water; lab glassware

13

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

14

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

15

ring stand: metal rod fixed upright in a heavy metal base; has many uses as a ...; used to .... lab equipment

support; hold/clamp

16

stirring with thermometer → If glass

no

17

Erlenmeyer flask (glass): may be ..., used in .... in which the ... of an unknown solution is discovered through using another solution

heated; titrations; concentration

18

safety goggles: must be worn at ....; used to prevent dangerous chemicals such as .... or .... from splashing into eyes

all times; acids; bases

19

rubber stoppers: used to plug ... and .... to prevent .../... from ....

flasks; test tubes; liquids/gases; escaping their containers

20

glass rod with nichrome wires: used in ...

flame tests

21

test tube holder: (spring metal), used to hold ... or ...., particularly when these containers are at ....

test tubes; glass tubing; extreme temperatures

22

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

23

scoopula: (metal/porcelain) used to transfer ....

solid chemicals

24

crucible tongs: (iron/nickel) used to ... and ... small items, particularly a ... after it has been ....; however, these tongs are quite ....

pick up; hold; crucible; heater; inefficient

25

rubber tubing: used to connect ... so as to transfer ... or ...

apparatus; liquids; gases

26

metal spatula: can be used for ... or ... chemicals; can also hold ..

stirring; mixing; chemicals

27

test tube brush: (bristles with wire handle); used to ... small diameter ...

scrub; glassware

28

ceramic square: used under .... or ...;

hot apparatus; glassware;

29

wire gauze: used to spread the ... of a ...; can also be used to transfer .... as well as to support a .... when heating

heat; burner flame; crucibles; container

30

burner: used to heat ... during ... and can also be used for ...

substances; experiments; flame tests

31

triangular file: used to scratch ... prior to breaking to ...

glass tubing; desired length

32

tripod: used to ... containers of chemicals above the ....

support; flame of a burner

33

graduated cylinder: used to measure ....; must not be ....; more accurate source of measurement than a ...

approximate volumes; heated; beaker

34

gas collecting tube: used to measure ...

gas volumes

35

clamps: fastened to support ....

apparatus

36

types of clamps:

buret test tube clamp; clamp holder; double buret clamp; ring clamp; 3 pronged jaw clamp; ring clamp

37

forceps: used to ... or ... small objects; also used to carry crucibles to avoid having... to interfere with data

pick up; hold; body oils/sweat

38

stirring rod and rubber policeman: used to ..., assist in ..., and for removing ... from a container

stir; pouring liquids; precipitates

39

condenser: used in ... procedures

distillation

40

buret: similar to a ....; used to measure ... of solutions in ....; delivers specific ... of liquids

graduated cylinder; volumes; titrations; volumes

41

graduated pipet: used to measure ...; less accurate than a ....

solution volumes; volumetric pipet

42

thermometer: measures

temperature

43

pipet bulb: used in ... with a solution

filling a pipet

44

platform balance: used to find the ... of different ... in lab

mass; equipment

45

heating symbol indicates that you should be carefult not to touch

hot objects with bare hands

46

fire symbol: indicates presence of ... or alerts you that you are working with a ...

open flame; flammable liquid

47

corrosive substance: indicates a ... or ... substance (typically acids)

caustic; corrosive

48

breakage symbol: indicates an activity in which likelihood of ... is greater

breakage

49

dangerous vapors symbol: indicates presence/ product of

dangerous vapors

50

explosion symbol: indicates that there is potential for

explosion

51

poison symbol: indicates presence of a

poisonous substance

52

electrical shock symbol: indicates potential for

electrical shock

53

radiation: indicates a ... substance

radioactive

54

disposal symbol: indicates that a chemical should be

disposed of in a special way

55

hygiene: reminds to clean and .... as well as to avoid

wash hands; touching face/eyes