LAB EQUIPMENT Flashcards

1
Q
  • 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
A

beaker

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2
Q

a flat, conical body, and a cylindrical neck

A

erlenmeyer flask

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3
Q

allows contents to be swirled or stirred during an experiment

A

erlenmeyer flask

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4
Q

has a narrow neck that keeps the contents from spiling out

A

erlenmeyer flask

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5
Q

it reduces evaporative losses compared to a beaker

A

erlenmeyer flask

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6
Q

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

A

volumetric flask

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7
Q

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

A

volumetric flask

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8
Q

used to accurately measure the volume of an object

A

graduated cylinder

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9
Q

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

A

graduated cylinder

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10
Q

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

A

test tube

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11
Q

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

A

beaker tongs

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12
Q

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

A

crucible tongs

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13
Q

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

A

test tube holder

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14
Q

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

A

test tube brush

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15
Q

a utensil to transfer solids (usually in powdered from)

A

scoopula

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16
Q

device used to measure the temperature of a substance

A

thermometer

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17
Q
  • 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
A

forceps

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18
Q

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

A

medicine dropper

19
Q

used to transfer small quantities of liquids

A

medicine dropper

20
Q

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

A

tets tube rack

21
Q

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

A

glass stirring rod

22
Q

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

A

glass stirring rod

23
Q

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

A

bunsen burn

24
Q

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

A

retort stand

25
Q

a device (shaped like a ā€œCā€) used to hold or secure objects to a retort stand

A

C-Clamp

26
Q
A
27
Q

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

A

burette

28
Q
A
28
Q

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

A

burette

29
Q

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

A

wire mesh or wire gauze

30
Q

used to hold a crucible while the crucible is heated

A

clay triangle

31
Q

originally used for metal, glass, and pugment production

A

crucible

32
Q

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

A

crucible

33
Q

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

A

funnel

34
Q

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

A

filter paper

35
Q

used to separate fine solids from liquids or air

A

filter paper

36
Q

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

A

mortar & pestle

37
Q

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

A

pestle

38
Q

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

A

mortar

39
Q

ceramic plate with a small wells or depression built into it

A

spot plate

40
Q

used to perform reaction on avery small amount of materials

A

spot plate

41
Q

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

A

evaporating dish

42
Q

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

A

petri dish

43
Q

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

A

watch glass