lab equipment

Question 1

measure the volume of a liquid. It has a narrow cylindrical shape

Answer 1

graduated cylinder

Question 2

most frequent method for transferring liquid chemicals or solvents in the organic laboratory

Answer 2

syringe

Question 3

represents the amount of liquid that has been measured

Answer 3

graduation

Question 4

measure and deliver accurate
volumes of liquid

Answer 4

pipettes and micropipettes

Question 5

measure a much smaller
volume, starting at 1 microliter

Answer 5

micropipette

Question 6

start at 1 milliliter

Answer 6

pipette

Question 7

used in analytical chemistry for accurate dispensing of variable, and for measuring the volume of a liquid

Answer 7

burette

Question 8

turning the tap to allow the acid be added chuchu

Answer 8

perpendicular direction

Question 9

at the tip of burette to control the flow of the chemical solution

Answer 9

stopcock and valve

Question 10

glass burette

Answer 10

acid burette

Question 11

rubber tube burette

Answer 11

alkali/base burette

Question 12

ptfe material for burette

Answer 12

ptfe burette

Question 13

type of laboratory flask, calibrated to contain a precise volume at a certain temperature. used for precise dilutions and preparation of standard solutions

Answer 13

volumetric flask

Question 14

parts of beam balance

Answer 14

pan, riders, balance pointer, beams, base, counter weight

Question 15

types of digital balance

Answer 15

analytical balance, top loading balance

Question 16

used by chemists to handle chemicals, especially for qualitative experiments and assays

Answer 16

test tubes

Question 17

Their spherical bottom and vertical sides reduce mass loss when pouring, make them easier to wash out, and allow convenient monitoring of the contents

Answer 17

test tubes

Question 18

to easily clean the inside of a test tubes and other glassware

Answer 18

test tube brush

Question 19

culture different microorganisms and cells. To study microorganisms like bacteria & viruses under great observation, it is important to keep them isolated from other species or elements.

Answer 19

petri dish

Question 20

concave, a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker.

Answer 20

watch glass

Question 21

perform reactions on a small amount of chemicals. tiny test tubes

Answer 21

spot plate, reaction plate, culture plate

Question 22

a flat plate with multiple “wells” used as small test tubes.

Answer 22

microwell plate or microtiter plate

Question 23

Used to hold and heat liquids, as a reaction vessel, as a hot water bath, for heating liquid mats

Answer 23

beaker

Question 24

used as containers to hold liquids

Answer 24

flasks

Question 25

for uniform heating, boiling, distillation and ease of swirling;

Answer 25

Florence flask

Question 26

used to contain chemical reactions run by chemists, especially for reflux set-ups and laboratory-scale synthesis

Answer 26

round-bottom flask

Question 27

to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves.

Answer 27

reagent bottles or media bottles

Question 28

types of reagent bottles

Answer 28

wide-mouthed reagent bottle, narrow-mouthed reagent bottle, amber reagent bottle

Question 29

to store medication as liquids, powders or capsules. They can also be used as scientific sample vessels

Answer 29

vials

Question 30

to collect samples of liquids, which will flow up into the tubes against the effects of gravity

Answer 30

capillary tube

Question 31

rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks.

Answer 31

wash bottle

Question 32

the material where wash bottle is made up of

Answer 32

polyethylene

Question 33

to grab a small item and cannot do it with your fingers

Answer 33

forceps

Question 34

to connect other pieces of lab equipment. It can be cut, bent and stretched for a variety of uses.

Answer 34

glass tubing

Question 35

for guiding liquid or powder into a small opening.

Answer 35

funnel

Question 36

used in flow lines for fluids and gases in a variety of hydraulic, pneumatic, process, medical, and specialty applications.

Answer 36

rubber tubing

Question 37

used for calculating the pH of a liquid

Answer 37

pH meter

Question 38

it includes two vessels

Answer 38

calorimeter (inner and outer vessels for heat insulator)

Question 39

measure the temperature of the liquid

Answer 39

thermometer

Question 40

stir the liquid and distribute the heat in the vessel

Answer 40

stirrer

Question 41

puts an object in rotation around a fixed axis (spins it in a circle), applying a force perpendicular to the axis of spin (outward) that can be very strong

Answer 41

centrifuge

Question 42

where the centrifugal acceleration causes denser substances and particles to move outward in the radial direction.

Answer 42

sedimentation principle

Question 43

used to evaporate excess solvents – most commonly water –to produce a concentrated solution or a solid precipitate of the dissolved substance.

Answer 43

evaporating dish

Question 44

to crush up solid chemicals into smaller pieces, or to grind solids into fine powder

Answer 44

mortar and pestle

Question 45

used to make a stir bar, immerse in a liquid, quickly spin, or stirring or mixing a solution, for example.

Answer 45

magnetic stirrer

Question 46

connects the condenser and the receiving flask in a distillation process

Answer 46

adapter

Question 47

used to separate mixtures of two liquids with different boiling points

Answer 47

distilling flask

Question 48

used in the laboratory to cool hot gases into liquids

Answer 48

condenser

Question 49

Used with filtering flask for performing vacuum filtration.

Answer 49

buchner funnel

Question 50

used in liquid-liquid extractions to separate the components of a mixture into two immiscible solvent phases of different densities

Answer 50

separatory funnel

Question 51

to contain chemical compounds when heated to extremely high temperature

Answer 51

crucible

Question 52

Used to hold crucibles when they are being heated. They usually sit on a ring stand

Answer 52

clay triangle

Question 53

Used to hold crucibles and evaporating dishes when they are hot.

Answer 53

crucible tong

Question 54

used to heat glassware or its contents

Answer 54

hot plate

Question 55

used to apply heat to containers, as an alternative to other forms of heated bath

Answer 55

heating mantle

Question 56

used for heating and exposing items to flame

Answer 56

burners

Question 57

three-legged platform used to support flasks and beakers

Answer 57

tripod

Question 58

placed on top of the tripod to provide a flat base for glassware

Answer 58

wire gauze

Question 59

used to give an airtight seal to laboratory flasks and test tubes

Answer 59

stoppers

Question 60

for cutting a hole in a cork or rubber stopper to insert glass tubing

Answer 60

cork borer