Lab Equipment (Unit 1)

Question 1

3-prong jaw clamp

Answer 1

Used to attach heavier or more bulky equipment to support apparatus (like a ring stand)

Question 2

Answer 2

Glass or plastic; used for storing or measuring an approximate amount of liquid (ex: approximately 50 mL)

Question 3

Beaker tongs (with beaker)

Answer 3

Used to move hot beakers

Question 4

Buret

Answer 4

Used to add a liquid to a reaction drop-by-drop; most commonly used in titrations

Question 5

Burner

Answer 5

Used to heat substances to higher temperatures or to heat quickly

Question 6

Clamp holder

Answer 6

Used to attach specific clamp endings to a support structure

Question 7

Clay triangle

Answer 7

Used to hold a crucible in place on a ring over a burner

Question 8

Used to heat small amounts of solid substances at high temperatures

Question 9

Crucible tongs

Answer 9

Used to handle hot crucibles or other small items

Question 10

Digital scale

Answer 10

Used to weigh out a mass of a solid substance; may look different due to differing models

Question 11

Double buret clamp

Answer 11

Used to attach two burets to a support structure

Question 12

Erlenmeyer flask

Answer 12

Used for heating liquids

Question 13

Evaporating dish

Answer 13

Used to contain small volumes of liquids being evaporated

Question 14

Florence flask

Answer 14

used for mixing liquids

Question 15

Forceps

Answer 15

Used to pick up small objects or clumps of solid substances

Question 16

Funnel

Answer 16

used to transfer liquids from one container to another, particularly when you are pouring from a larger container into a smaller one

Question 17

Glass stirring rod & rubber policeman

Answer 17

Glass stirring rod - used to stir liquids or liquid solutions and in decanting (a method of mixture separation)

Rubber policeman - fits on the tip of a glass stirring rod and is used to collect wet solid off glassware

Question 18

Graduated cylinder

Answer 18

Used to measure liquid volume more precisely than non-graduated glassware - typically to the nearest tenth of a millileter.

Question 19

Graduated pipet

Answer 19

Used to measure a liquid precisely; can be used to measure volume to the hundredths place.

(Very similar to buret. Buret is much longer and has a valve at the bottom. While burets are used to add an undetermined volume of a liquid drop by drop to a reaction until something expected occurs, gradated pipets are used to add a predetermined amount of liquid.)

Question 20

Hot plate

Answer 20

Used to heat a substance to lower temperatures or more slowly than a burner

Question 21

Mortar and pestle

Answer 21

used to grind solids into fine powder

Question 22

Pipet

Answer 22

Used to dispense a liquid drop by drop; also comes in a disposable form

Question 23

Pipet bulb

Answer 23

Used to create a vacuum to draw liquid up into a pipet

Question 24

Plastic wash bottle

Answer 24

Used to rinse items with DISTILLED water (not regular tap water); NOT used to squirt classmates!

Question 25

Ring Clamp

Answer 25

Used to support glassware over a burner; comes in various ring sizes

Question 26

Ring stand

Answer 26

Used to support a ring or object over a burner; the most common type of support structure

Question 27

Rubber tubing

Answer 27

Carries gas from the gas jet to the burner

Question 28

Safety googles

Answer 28

Worn to protect eyes while in the lab anytime heat, glassware, or chemicals are used

Question 29

Scoopula

Answer 29

used to retrieve or transfer solid material (half scoop, half spatula)

Question 30

Stoppers

Answer 30

Used to close test tubes or other glassware. May be made of rubber or cork. Rubber may feature holes for insertion of thermometers or tubing.

Question 31

Test tubes

Answer 31

Used to hold small amounts of substances

Question 32

Test-tube brush

Answer 32

Used to clean the inside of a test tube

Question 33

Test-tube holder

Answer 33

Used to hold a test tube over a flame or move hot test tubes

Question 34

Test-tube rack

Answer 34

can be wooden or plastic; used to hold test tubes

Question 35

Thermometer

Answer 35

Used to measure temperature

Question 36

Utility tongs

Answer 36

General useful tongs for moving objects unsafe to handle

Question 37

Volumetric Flask

Answer 37

Used to make solutions of precise concentrations

Question 38

Volumetric Pipet

Answer 38

Used to add or measure an extremely precise and accurate volume of liquid (exactly 5.00 mL, 10.00 mL, etc.)

Question 39

Watch glass

Answer 39

used to store or weigh out solids, or to cover a beaker or evaporation dish

Question 40

Wire gauze

Answer 40

Used to spread heat from a flame over the bottom of an object; often used to support an object over a flame on a ring that is itself larger than the object; sometimes includes a ceramic circle embedded within the square.