LAB EQUIPMENT

Question 1

• a simple container for strring mixing and heating liquids
• generally cylindrical in shape with a flat bottom and a lip fro pouring
• available in a wide range of sizes, from one mL up to several litres

Answer 1

beaker

Question 2

a flat, conical body, and a cylindrical neck

Answer 2

erlenmeyer flask

Question 3

allows contents to be swirled or stirred during an experiment

Answer 3

erlenmeyer flask

Question 4

has a narrow neck that keeps the contents from spiling out

Answer 4

erlenmeyer flask

Question 5

it reduces evaporative losses compared to a beaker

Answer 5

erlenmeyer flask

Question 6

has a flat bottomed bulb with a long neck usually fitted with a stopper

Answer 6

volumetric flask

Question 7

the neck has a single ring graduatio mark and a label and is used for making solutions to a known volume

Answer 7

volumetric flask

Question 8

used to accurately measure the volume of an object

Answer 8

graduated cylinder

Question 9

is more accurate and precise for this purpose than flasks and beakers

Answer 9

graduated cylinder

Question 10

a common piece of glassware consisting of a finger-like length of glass or clear placttis tubing, open at the top, usullay with a rounded U-shaped bottom

is available in a multitude of lengths and widths, typically from 10 - 20 mm wide and 50 to 200 mm long

Answer 10

test tube

Question 11

tongs used to carry a baker after it has been subjected to heat ad or cold temperatures

Answer 11

beaker tongs

Question 12

tongs used to carry a crucible after is has been subjected to heat.cold temperatures

Answer 12

crucible tongs

Question 13

a gripping device used to carry a test tube after it has been subjectd to heat/cold temperatures

Answer 13

test tube holder

Question 14

a device used to clean the inside of atest tube (or other long-necked glassware)

Answer 14

test tube brush

Question 15

a utensil to transfer solids (usually in powdered from)

Answer 15

scoopula

Question 16

device used to measure the temperature of a substance

Answer 16

thermometer

Question 17

• a handheld, hinged intrument used for grasping and holding objects
• used when fingers are too large to grasp small objects or when many objects need to be held at one time while hands are used to perform a task

Answer 17

forceps

Question 18

usually glass tubes tapered to a narrow point and fitted with a rubber bulb at the top

Answer 18

medicine dropper

Question 19

used to transfer small quantities of liquids

Answer 19

medicine dropper

Question 20

used to hold.support test tubes containing chemicals waiting for further operations

Answer 20

tets tube rack

Question 21

a piece of lab equipment used to mix chemicls and liquids for laboratory purposes

Answer 21

glass stirring rod

Question 22

usually made of solid glass, about the thickness of a drinking straw

Answer 22

glass stirring rod

Question 23

piece of laboratory equipment that produces a single open gas flame which is used for heating, sterilization, and combustion

Answer 23

bunsen burn

Question 24

a piece of scientific equipment to which clamps can be attached to hold test tubes and other equipment (such as burettes)

Answer 24

retort stand

Question 25

a device (shaped like a "C") used to hold or secure objects to a retort stand

Answer 25

C-Clamp

Question 27

a vertical cylindrical piece of laboratory glassware with a volumetric graduated on its full length and a precision tap or stopcock on the bottom

Answer 27

burette

Question 28

used to dispense known amounts of a liquid in experiements for which precision is necessary (titration experiment)

Answer 28

burette

Question 29

a semi-permeable barrier made of connected strands of metal fiber or other flexible /ductile material

Answer 29

wire mesh or wire gauze

Question 30

used to hold a crucible while the crucible is heated

Answer 30

clay triangle

Question 31

originally used for metal, glass, and pugment production

Answer 31

crucible

Question 32

a container that can withstand temperatures high enough to melt or otherwise alter its contents

Answer 32

crucible

Question 33

used to channel liquid or fine-grained substances into containers with a small opening

Answer 33

funnel

Question 34

a semi-permeable paper barrier placd perpendicular to a liquid of air flow

Answer 34

filter paper

Question 35

used to separate fine solids from liquids or air

Answer 35

filter paper

Question 36

a tool used to crush, grind, and mix solid substances

Answer 36

mortar & pestle

Question 37

is a heavy bat-shaped object, the end os which is used for crushing and grinding

Answer 37

pestle

Question 38

is a bowl typically made of hard wood, ceramic, or stone

Answer 38

mortar

Question 39

ceramic plate with a small wells or depression built into it

Answer 39

spot plate

Question 40

used to perform reaction on avery small amount of materials

Answer 40

spot plate

Question 41

a porcelain or cermaic dish used to evaporate excess water (or other solvents) to ensure that a concentrated solution or the dissolved substance is left behind

Answer 41

evaporating dish

Question 42

a shallow glass or plastic cylindircal lidded dish that biologists use to culture cells

Answer 42

petri dish

Question 43

a circular slightly curved piece of glass used in chemistry as a surface to evaporate a liquid to hold solids while being wighed or as a cover for a beaker

Answer 43

watch glass