chp 0 (Lab apparatus)

Question 1

pipette filler

Answer 1

a rubber or plastic bulb, suck and accurately measured the amount of liquid

Question 2

beaker

Answer 2

a flat-bottomed, cylindrical piece of glassware, for mixing and heating compounds

Question 3

dropper

Answer 3

used to add drop quantities of solutions or liquid

Question 4

test-tube brush

Answer 4

used to clean the inside of wall of laboratory glassware

Question 5

Watch glass

Answer 5

a piece of glassware used for evaporating liquids

Question 6

evaporating dish

Answer 6

used to hold solutions during evaporation

Question 7

desiccator

Answer 7

contains drying agent to dry solids or liquid by placing them inside

Question 8

gas syringe

Answer 8

used to collect gas or measure the volume of a gas

Question 9

conical flask

Answer 9

used to hold liquid

Question 10

measuring cylinder

Answer 10

used for rough measurements of the volume of liquid

Question 11

condenser

Answer 11

used to collect vapours by condensing them into liquid as they contact the liquid-cooler inner surface of the condenser

Question 12

burette

Answer 12

an extremely accurate device with a stopcock at the bottom used to measure volumes of regents

Question 13

rubber stoppers

Answer 13

used to close flask or test tubes to prevent evaporation of liquid or escape of gases

Question 14

test tube rack

Answer 14

used to hold the test-tubes on bench

Question 15

filter funnel

Answer 15

used together with filter paper to filter solid out of solution

Question 16

plastic washbottle

Answer 16

a plastic squeeze bottle that holds a liquid or solvents

Question 17

spatula

Answer 17

used to transfer small amounts of solid, especially powder

Question 18

pipette

Answer 18

for measuring accurate volume of liquids then quantitatively transfer the measured liquid from one container to another

Question 19

thermometer

Answer 19

used to measure temperature

Question 20

scoopula

Answer 20

another instrument used to transfer solids from one place to another

Question 21

wire gauze

Answer 21

generally used as a surface for beaker or flask to rest when being heated

Question 22

heat-resistant mat

Answer 22

used to avoid burning the surface of the lab bench

Question 23

round-bottomed flask

Answer 23

usually suspended and heated from below. Its shape makes it easy to swirl and mix liquid inside of it

Question 24

flat-bottomed flask

Answer 24

used to hold liquid, can stand on a bench without support

Question 25

reagent bottle

Answer 25

used for storage of solutions or liquid

Question 26

electrical balance

Answer 26

used for more accurate weighting, obtaining the masses of solid and liquid samples

Question 27

crucible

Answer 27

cup-shaped container capable of sustaining high temperature, typically used to hold substance during strong heating

Question 28

mortar and pestle

Answer 28

used to grind a solid to a powder

Question 29

test tube

Answer 29

a cylindrical open-topped piece of glassware that comes in varying sizes

Question 30

boiling tube

Answer 30

used to boil a large amount of liquid

Question 31

crucible tongs

Answer 31

used to handle the hot crucible

Question 32

retort stand

Answer 32

equipment which champs can be attached to hold laboratory glassware in place

Question 33

Bunsen burner

Answer 33

the main heating source in the laboratory, attached to a gas line and lit to provide heat for your experiments

Question 34

tripod

Answer 34

a three-legged frame used as a platform for supporting the weight for heating above the Bunsen burner

Question 35

teat pipette

Answer 35

used to precisely add drop quantities of solutions or liquid

Question 36

separating funnel

Answer 36

used to separate two immiscible liquid

Question 37

dropping bottle

Answer 37

used storage of solutions or liquids can transfer liquid by the teat

Question 38

pipeclay triangle

Answer 38

used to gold a crucible on tripod while it is heating

Question 39

petri dish

Answer 39

used for temporary storage of solid

Question 40

test tube holder

Answer 40

used to hold the upper portion of a test tube during heating

Question 41

glass rod

Answer 41

used for stirring

Question 42

clamp

Answer 42

used to hold or secure laboratory glassware tightly