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chem 015 > LABORATORY GLASSWARES > Flashcards

LABORATORY GLASSWARES Flashcards

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1
Q

All TD-type glassware is calibrated in

A

milliliters (mL)

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2
Q

a metal or a plastic with rubber knob that can be attached to iron stand, used to
hold a fixed position of a burette.

A

buret clamp

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3
Q

quantity of the liquid corresponds to the capacity printed on the glassware

A

To contain

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4
Q

Blue litmus paper turns red

A

acid

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5
Q

These glassware may be used to measure approximately or accurately the volume of liquids.

A

TD

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6
Q

a thin sheet of metal with net-like crosses, used to support glassware during
experimental set up that requires heating.

A

wire gauze

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7
Q

a thin glass tube closed at one end, used to hold small amounts of material for
laboratory testing or experiments.

A

test tube

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8
Q

The bottom of the meniscus is the

A

level of solution

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9
Q

does not offer protection from air disturbances because it does not have a draft shield

A

top loading balance

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10
Q

is extremely sensitive and, since air currents can affect the measurement, it must be covered by a draft shield.

A

analytical balance

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11
Q

For the pipette (and even burette), the
volume is read after the liquid has
been

A

dispensed.

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12
Q

a round, concave glass surface used to evaporate the liquid, to weigh solid
samples, as a cover for a beaker for heating.

A

watch glass

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13
Q

a long graduated glass tube with stopcock at one end, used to deliver accurate volume of liquid especially in titration.

A

Buret

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14
Q

a glass or plastic narrow cylindrical shape glassware, used to measure the volume of a liquid.

A

graduated cylinder

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15
Q

used for samples up to about 320 g.

A

analytical balance

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16
Q

a metal, wood, or plastic clamp used to hold test tubes while heating

A

test tube holder

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17
Q

Are TD-type glassware used to accurately deliver single (volumetric pipette) or variable (measuring pipette) volumes of liquid

A

pipettes

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18
Q

a rubber bulb that serves as a vacuum source for filling reagents through a
pipette.

A

pipette bulb

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19
Q

a stainless steel metal, used to grasp and hold small objects

A

forceps

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20
Q

a brush used for cleaning test tubes and narrow mouth laboratory glassware, such as beakers and flasks.

A

test tube brush

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21
Q

a metal ring with adjustable screw that can be attached to iron stand, used to
support lab apparatus above the working surface.

A

iron clamp

22
Q

– a plate with small well made up of ceramic or plastic, used as a reaction plate for small scale samples.

A

spot plate

23
Q

a triangular made up of wire and ceramic, used to support a crucible while it is
heated over the Bunsen burner

A

clay triangle

24
Q

a holder of test tube with openings with various size, used to hold a range of tube diameters.

A

test tube rack

25
Q

can have a capacity of 600 to 34,000 g.

A

top loading balance

26
Q

To estimate the volume properly, the eye
should be at the [] to avoid parallax error.

A

same level as the bottom of the meniscus

27
Q

a solid glass with rounded ends used to mix chemicals.

A

stirring rod

28
Q

has a readability range between 0.1mg - 0.01mg

A

analytical balance

29
Q

a stainless steel or plastic spoon, used to transfer, scrap, and apply powder and
paste samples without contamination.

A

spatula

30
Q

highly sensitive instrument designed for
accurate weight measurement

A

analytical balance

31
Q

a glass with elongated neck calibrated with a specific used to prepare solutions.

A

volumetric flask

32
Q

a slender graduated tube, used to measure and deliver an accurate volume of liquid
to another vessel.

A

pipette

33
Q

a three-legged platform, used to hold and support glassware during experimental set
up that requires heating.

A

tripod

34
Q

Unlike a [], the 0-mL graduation mark is found almost at the [] part of the pipette

A

graduated cylinder - top

35
Q

a squeeze bottle with a nozzle, used to rinse various pieces of laboratory
glassware.

A

water bottle

36
Q

an instrument for measuring and indicating temperature, consisting of a sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with heating and cooling.

A

thermometer

37
Q

a long metal pole with solid firm base, used to support laboratory glassware

A

ring stand

38
Q

produces steady readings in wider
environmental conditions as opposed to
analytical balance.

A

top loading balance

39
Q

the specified volume at the calibration temperature.

A

To deliver

40
Q

a conical, flat bottomed laboratory flask with a narrow neck; used to contain liquids. More commonly used in titration

A

erlenmeyer flask

41
Q

a metal with adjustable thumbscrew, used to hold the attached laboratory
apparatus in the iron clamp.

A

iron stand

42
Q

a piece of paper, used to indicate the acidity and basicity of a substance by
means of color changes once the sample was dropped.

A

litmus paper

43
Q

a glass or plastic with two or three necks and ground bottom, used to transfer liquids from one vessel to another.

A

funnel

44
Q

When aqueous solutions wet the wall of any TD type glassware, it gives a shallow curve on the surface of the liquid. This is called the

A

meniscus

45
Q

a small ceramic or metal containers, used to heat substances at high temperature.

A

crucible and cover

46
Q

an elongated scissor with end forked, used to handle hot crucible and cover.

A

crucible tongs

47
Q

has a readability of 0.01-0.001 g

A

top loading balance

48
Q

a small ceramic dish, used to dry sample by allowing the liquid component to evaporate, leaving a solid residue.

A

evaporating dish

49
Q

a glass container with a flat bottomed used to contain solids or liquids.

A

beaker

50
Q

a durable bowl made up of ceramics, used to grind solid substances into a
fine powder

A

mortar and pestle

51
Q

red litmus paper turns blue

A

basic

52
Q

TD-type glasswares are

A

pipette, burette, graduated cylinder

chem 015 (10 decks)

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