lab tools/equipment

Question 1

iron ring

Answer 1

description - iron ring with screw faster several sizes available
use - to fasten to the ring stand as a support for apparatus

Question 2

buret clamp/ test tube clamp

Answer 2

description - screw fastener, swivel and lock nut, adjusting screw, curved clamp
use - to hold apparatus may be fastened to the ring stand

Question 3

pinch clamp

Answer 3

description - metal clamp with finger grips
use - to clamp a rubber connector

Question 4

test tube rack

Answer 4

description - rack, may be wood, metal, or plastic
use - to hold test tubes in an upright position

Question 5

plastic water bottle

Answer 5

description - squeezable plastic bottle with angular tip
use - to dispense distilled water

Question 6

test tube brush

Answer 6

description - brush with wire handle
use - to scrub glass apparatus

Question 7

stirring rod

Answer 7

description - glass rod
use - to stir combination of materials, to use in pouring liquids

Question 8

porcelain dish

Answer 8

as a container for small amounts of liquid being evaporated

Question 9

watch glass

Answer 9

description - curved glass
use - may be used as a beaker cover may be used in evaporating very small amounts of liquids

Question 10

medicine dropper

Answer 10

description - glass tip with rubber bulb
use - to transfer small amounts of liquids

Question 11

forceps

Answer 11

description - metal
use - to pick up or hold small objects

Question 12

beaker

Answer 12

description - glass
use - as a container (like a cup), may be heated

common sizes:
50 mL
250 mL
400 mL

Question 13

graduated cylinder

Answer 13

description - glass, marked with a mL scale
use - to measure volume

sizes/divisions
50 mL 1.0 mL
35 mL 9.2 or 0.5 mL
10 mL 0.1 mL

Question 14

erlenmeyer flask

Answer 14

description - glass
use - may be heated
common sizes:
125 mL
250 mL
500 mL

Question 15

tongs

Answer 15

description - metal
use - to pick up or hold apparatus

Question 16

gas measuring tube

Answer 16

desciritipn - glass, marked with a mL scale
use - used to collect and measure the volumes of gases

Question 17

ceramic-fibered square

Answer 17

description - hardened ceramic-fibered material
use - to place under hot apparatus

Question 18

mortar and pestles

Answer 18

description - heavy porcelain dish with grinder
use - to grind chemicals to a powder

Question 19

spatula

Answer 19

description - may be of metal or porcelain
use - to transfer solid chemicals in weighing

Question 20

triangular file

Answer 20

description - metal file with 3 cutting edges
use - to scratch glass to file

Question 21

rubber connector

Answer 21

description - short length of rubber tubing
use - to connect parts of apparatus

Question 22

glass plate

Answer 22

description - thick glass
use - many uses (shouldn’t be heated)

Question 23

funnel

Answer 23

description - glass or plastic
use - to hold a filter paper - may be used in pouring

Question 24

funnel support

Answer 24

description - wooden frame with slots for funnels; has a metal clamp

use - to support/hold funnels

Question 25

wide-mouth bottle

Answer 25

description - glass use - many uses as a container for things

Question 26

florence flask

Answer 26

glass common sizes: 125 mL 250 mL 500 mL may be heated

Question 27

test tube

Answer 27

description - glass, several sizes use - many uses / can be heated

Question 28

double-buret clamp

Answer 28

description - metal clamp with flexible clips use - to hold burets when titrating

Question 29

10 cm ruler

Answer 29

description - 10 cm ruler, plastic divided into centimeters and millimeter divisions use - to measure length

Question 30

pipstem triangle

Answer 30

description - triangular wire frame with clay material coverings use - to support the crucible

Question 31

crucible and cover

Answer 31

description - small porcelain dish with cover use - to heat small amounts of solid materiel at a high temperature

Question 32

wire gauze

Answer 32

description - wire screen with ceramic-fibered center use - to spread the heat of a flame

Question 33

labaratory burner

Answer 33

description - metal heating device connected to gas outlet with rubber tubing use - to heat chemicals in beakers or test tubes

Question 34

ring stand

Answer 34

description - metal rod upright heavy base use - to support with many uses

Question 35

buret

Answer 35

description - glass / marked with a mL scale and fitted with a stopcock, pinch clamp, or glass bead use - used to withdraw and measure volumes of solutions in titrations

Question 36

volumetric flask

Answer 36

description - glass / marked off to liter capacity, with a glass stopper use - used in the prep of solutions