問題一覧
1
for measuring mass
balance
2
to hold, mix, and heat liquids
beaker
3
as heat source in the absence of flammable materials
bunsen burner
4
for dispensing accurate volume of a liquid
buret
5
to support a crucible during heating
clay triangle
6
for holding chemicals during heating to very high temperatures
crucible
7
to hold crucibles
crucible tongs
8
to hold and mix chemicals. The small neck is to facilitate mixing without spilling
erlenmeyer flask
9
to heat liquids for evaporation
evaporating dish
10
for filtration; also to transfer liquids or fine-grained materials Into containers with small openings.
funnel
11
to measure a precise volume of a liquid
graduated cylinder
12
to crush and grind materials
mortar and pestle
13
used with a ring stand to hold glassware, such as beaker or funnel
iron clamp
14
to support laboratory glassware, water bath, etc.
iron stand
15
- to transfer solids
scoopula
16
for stirring and mixing
stirring rod
17
to hold and mix liquids
test tube
18
to hold a test tube during heating
test tube holder
19
to hold several tubes at one time
test tube rack
20
to measure temperature
thermometer
21
to secure glassware to a ring stand
utility
22
to prepare solutions of accurate volume
volumetric flask
23
to measure small amounts of liquid very accurately; draw in or suck the liquid using an aspirator (never use your mouth)
volumetric pipet
24
to rinse parts of glasswares and to add small quantities of water
wash bottle
25
to hold solids while weighing or to cover a beaker
watch glass
26
to support a container, such as beaker, on a ring stand during heating
wire gauze