WEEK02A

Question 1

used for holding various chemicals.
Not for measuring precisely.
Sizes vary.

Answer 1

beakers

Question 2

Used to precisely measure the volume of liquids or run experiments.
Read from the meniscus at eye level.
Sizes vary.

Answer 2

graduated cylinder

Question 3

Used to approximately measure the volume various liquids.
Useful for mixing by swirling
Sizes vary.

Answer 3

erlenmeyer flask

Question 4

Used to boil liquids.
Also used to collect gases, if applicable.
Sizes vary.

Answer 4

florence flask

Question 5

Used to prepare standard solutions.
Used for dilution
They are only good for 1 specific volume.
Comes in many sizes

Answer 5

volumetric flask

Question 6

Used to store, transport, or view reagents such as acids or bases.

Answer 6

reagent bottle

Question 7

Used to close flasks and test tubes.
The holes allow the insertion of glass tubing, probes, or thermometers as needed by the experiment.

Answer 7

rubber stoppers

Question 8

Used to hold chemicals/tubes while experimenting.
Not for measuring precisely.
Aim away from faces.
Sizes vary.
Label tubes.

Answer 8

test tubes and rack

Question 9

Used for precisely measuring dispensed liquids

Answer 9

buret

Question 10

Base/Pole of set-up for experimentation.

Answer 10

ring stand

Question 11

Holds glassware in place for heating or evaporating.

Answer 11

ring clamps

Question 12

Cleaning.
You must clean tubes before and after you use.

Answer 12

test tube brushes

Question 13

Used for carrying or holding hot test tubes.

Answer 13

test tube holder

Question 14

Measuring temperature.

Answer 14

thermometer

Question 15

Used to heat substances.

Answer 15

hot plate

Question 16

Used to heat substances quickly or if > 400oC is needed.

Answer 16

bunsen burner

Question 17

Used for a variety of things.
Example:
Connecting Bunsen burner to gas valve stem.
Connecting glass tubing together.

Answer 17

rubber tubing

Question 18

Used to absorb and spread the heat of flame.
Keeps glassware from cracking and breaking.
Part of ring stand set-up.

Answer 18

wire mesh or gauze

Question 19

Used to hold a crucible in place on a ring stand.
Also helps absorb and spread heat of flame.
Part of ring stand set-up.

Answer 19

clay triangle

Question 20

Used for heating substances.
Can withstand high direct heat.

Answer 20

crucible and cover

Question 21

Used to carry crucible.

Answer 21

crucible tongs

Question 22

Used to carry beakers.

Answer 22

beaker tongs

Question 23

Used to grind substances into powder or slurry.

Answer 23

mortar and pestle

Question 24

Used to scoop chemical powders.
Not a measuring instrument.

Answer 24

scoopula/spatula

Question 25

Used to stir substances

Answer 25

stirring rod

Question 26

Used to evaporate liquids and cover beakers during sample preparation. It is also used to hold solids during weighing.

Answer 26

watch glass

Question 27

Used to evaporate excess liquids.

Answer 27

evaporating dish

Question 28

Used to separate suspensions (solids from liquids).

Answer 28

centrifuge

Question 29

Used to safely transfer substances from one container to another.

Answer 29

funnel

Question 30

Used to measure out small amounts of liquids for experiments.

Answer 30

dropper and bottle

Question 31

Usually contains deionized water. Handy for rinsing glassware and for dispensing small amounts of dH2O for chemical reactions.

Answer 31

wash bottle

Question 32

Used to accurately measure mass. Only up to 200g in our labs.

Answer 32

digital balance

Question 33

Measures the mass of an object. Make certain the balance is calibrated correctly before use.

Answer 33

triple beam balance

Question 34

Used to compare the masses of two substances.

Answer 34

double pan balance

Question 35

Used to precisely measure the mass of a substance. More precise than the triple beam balance.

Answer 35

centigram balance

Question 36

Used to precisely measure the volume of liquids in small amounts.

Answer 36

pipet, pump, and bulb