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PHARM 1104 > Laboratory Equipments > Flashcards

Laboratory Equipments Flashcards

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1
Q

A piece of laboratory glassware used to inject or remove a volume of gas from a closed system, as well as to quantify the volume of gas produced by a chemical reaction.

A

Gas syringe

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2
Q

A cylindrical vessel with a cap that is used in a centrifuge machine to separate the components of solutions.

A

Centrifuge tube

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3
Q

A metal wire interwoven sheet that sits between the beaker and the tripod stand. Because glassware cannot be heated directly, a wire mesh is utilized to diffuse the heat from the flames.

A

Wire mesh

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4
Q

A piece of laboratory glassware used to separate two immiscible liquids with similar densities.

A

Separatory funnel

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5
Q

A piece of laboratory equipment used to extract lipids and other desired chemical compounds from solid materials.

A

Soxhlet apparatus

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6
Q

It is a device used for heating flammable chemical samples at a constant temperature.

A

Water bath

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7
Q

It is a cylindrical vessel with a round bottom that is used to hold chemicals during the experiments, with high thermal stability.

A

Test tube

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8
Q

A piece of laboratory glassware that provides a controlled flow of liquids while transferring them from one vessel to another.

A

Dropping funnel

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9
Q

An oddly shaped airtight glassware with a curved neck, for non-complex distillation.

A

Retort flask

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10
Q

Scissor-like tools used to grip and lift objects and avoid the risk of getting burnt.

A

Tongs

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11
Q

A laboratory apparatus that separates fluids, gaseous or liquid, according to density.

A

Centrifuge

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12
Q

A device that has been calibrated to transfer a very specific volume of liquid from one container to other.

A

Volumetric pipette

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13
Q

Who used the retort flask?

A

Antoine Lavoisier
Jons Berzelius

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14
Q

An apparatus used to assess the nitrogen concentration in organic compounds, resembling a volumetric flask but has a circular bottom instead of conical.

A

Kjeldahl Flask

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15
Q

Where can centrifuge machines be used?

A
  1. collect cells
  2. precipitate DNA
  3. purify viral particles
  4. identify minor changes in molecular conformation.
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16
Q

Ancient tools used to crush and grind ingredients or substances into a thin paste or powder.

A

Mortar and pestle

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17
Q

A shallow, transparent cylindrical tube used to carry out biochemical reactions in general.

A

Petri dish

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18
Q

Ceramic or metal pot-like vessel used to melt metals and other solid chemical compounds.

A

Crucible

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19
Q

It is commonly used in organic chemistry for several heating purposes, such as evaporating solutions to dryness post-synthesis using a rotary evaporator and removing concentrated samples.

A

Pear-shaped flask

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20
Q

A piece of laboratory glassware that is used to filter solid impurities from chemical solutions.

A

Filter funnel

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21
Q

A laboratory device used to mix, blend, or stir chemical compounds by shaking them.

A

Mechanical Shaker

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22
Q

What is buchner flask also known for?

A

Vacuum flask, filter flask, suction flask, side-arm flask, and Kitasato flask.

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23
Q

Where is centrifuge machine based on?

A

Sedimentation principle

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24
Q

A regular plastic bottle attached to a nozzle with a screw-top lid, and it is used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks, after or before their use.

A

Wash bottle

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25
This apparatus is widely used to provide a controlled flow of reagents during their volumetric analysis or titration.
Burette
26
A method of purifying chemicals based on their polarity or hydrophobicity.
Column chromatography
27
Composed of one perforated sheet arranged over a plain sheet of plastic or metal, which holds the test tubes in an upright position.
Test tube rack
28
A three-legged platform that is used to support vessels while they are being heated on a bunsen burner.
Laboratory tripod
29
One of the most commonly used flasks to carry out various experiments in the chemistry lab, such as titration, filtration, crystallization, etc.
Erlenmeyer Flask
30
A device that is used to precisely measure temperature or temperature changes.
Laboratory Thermometer
31
A circular concave piece of glassware used in chemistry labs for a variety of applications. These include a surface to evaporate a liquid, to hold solids while weighing, to heat a small amount of substance, and as a beaker cover.
Watch glass
32
A device used to measure the weight of chemical reagents in the chemistry lab. They are highly sensitive and can even weigh 0.001 gm of a substance.
Digital balance
33
A device used in a chemistry lab to determine the concentration of a known solute by measuring the absorbance of a particular wavelength of light by a given solution.
Digital colorimeter
34
When and who patented the erlenmyer mask?
1860, Emil Erlenmeyer.
35
A cone-shaped device used to pour liquids from one vessel to another without the risk of spillage.
Funnel
36
Refers to a collection of laboratory techniques used to separate mixtures.
Chromatography
37
Explain beakers.
01. Commonly used apparatus. 02. Cylindrical, flat bottom, small spout on top 03. Made up of borosilicate glass or plastic. 04. Often used to hold, mix, and heat chemicals. 05. 5 mL to 10, 000 mL
38
A device used in the chemistry lab to prepare gases such as hydrogen sulfide gas, carbon dioxide gas, and hydrogen gas.
Kipp's Apparatus
39
A tool used to carry, mix, or spread solid or paste materials in the chemistry lab.
Spatula
40
Chemistry lab apparatus commonly used to calculate the melting point temperature of chemical substances.
Capillary tube
41
A type of laboratory glassware that is used to perform anaerobic reactions.
Schlenk Flask
42
Also known as a volumetric cylinder or measuring cylinder, is a long slender vessel used to measure the volume of liquids in the chemistry lab.
Graduated cylinder
43
Who created Buchner Flask?
Ernest Willhem Buchner
44
A device used to determine the melting point of the chemical compounds.
Melting point apparatus
45
These funnels reduce the possibility of a reaction occurring too quickly and gushing over.
Thistle Tube
46
A type of gas burner designed to provide a single flame with the desired intensity.
Bunsen burner
47
What is erlenmeyer flask also known for?
Conical flask
48
Referred to as media bottles, are specially designed containers or vessels to hold chemicals in liquid or powder form.
Reagent bottles
49
One of the laboratory glassware primarily used to prepare solutions.
Volumetric flask
50
What is boiling tube made of?
Pyrex, a superior thermal stability
51
What are the dimensions of capillary tube?
0.5 mm to 3 mm in diameter 1 mm to 6 mm in length
52
A glassware apparatus that looks similar to a test tube, although it is 50% larger in size.
Boiling tube
53
A piece of laboratory equipment used to cause condensation, i.e., turning vapors into liquid.
Condenser
54
Difference between plastic beakers and glass beakers.
P - 01. Mix chemicals. G - 01. Mix and heat chemicals. 02. More clarity for content visibility and measurement.
55
A piece of laboratory glassware used to determine the melting point of organic compounds.
Thiele tube
56
A semi-permeable sheet of paper used in chemistry labs to separate solid impurities or components from a liquid solution. They are often made of cellulose whose capillary function comes in handy while separating fine solid impurities.
Filter paper
57
It is commonly used for vacuum filtration or distillation of solutions, which allows faster filtration than traditional methods.
Buchner Flask
58
A type of filtration equipment used in laboratories. It is typically constructed of porcelain, glass, or plastic. It is frequently used in conjunction with a Büchner flask to carry out the filtration process.
Buchner funnel
59
What are the engraved rings in the elongated neck of the volumetric flask for?
Indication of specific volume
60
What is NMR usually made of, and what is its diameter?
5 mm, borosilicate glass with polyethylene caps
61
A piece of supporting equipment designed to hold other laboratory apparatus such as beakers, flasks, burets, etc.
Ring stand
62
A device that stirs chemical solutions by using electromagnetic force.
Magnetic stirrer
63
These test tubes are used in biology and related sciences for handling and culturing all kinds of live organisms, such as molds, bacteria, seedlings, plant cuttings, etc.
Culture tubes
64
A device used to hold test tubes while heating them.
Test tube holder
65
Why is fusion tube made of thinner glass?
It is meant to be broken down after heating.
66
A long, calibrated tube that is used in the laboratory to measure the volume of liquid being transferred from one container to another.
Graduated pipette
67
An imaging technique used in chemistry as well as physics to observe the magnetic behavior around the atomic nuclei.
NMR or Nuclear Magnetic Resonance
68
These funnels enable the precise placement of small quantities of chemicals in an existing system or apparatus, making it easier to add new materials to burets and narrow neck containers.
Thistle tube
69
Often used in experiments that require uniform heating or boiling of the chemical contents.
Round bottom flask
70
It is used to conduct experiments such as the sodium fusion test (Lassaigne’s test) or determine the substance’s melting/boiling point by heating a small sample excessively.
Fusion tube
71
What are some colors of reagent bottles and what is its purpose?
Amber (actinic) brown or red to protect light sensitive chemical compounds from light, ultraviolet, and infrared radiation.
72
Sometimes known as a dropper, is a device used in chemistry labs to transfer extremely small quantities of liquids.
Pasteur pipette
73
When and who invented Kjeldahl Flask?
19th century, Johan Gustav Christoffer Thorsager Kjeldahl
74
A bowl-like apparatus that resembles a crucible but is used to evaporate liquid substances.
Evaporating dish or china dish

PHARM 1104 (8 decks)

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