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CHEM181 > Activity 1 > Flashcards

Activity 1 Flashcards

1
Q

It is a laboratory equipment used in analytical chemistry for the dispensing of variable amount of a chemical solution and measuring that amount at the same time.

A

Acid Burette

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2
Q

It is a glass vial with graduation marks. It is used in the laboratory for accurately measuring and dispensing liquids.

A

Acid Burette

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3
Q

It is a laboratory equipment used to connect pieces of ground glass joint glassware to each other, to a vacuum source, or to a water aspirator.

A

Adapter

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4
Q

It is used to lead liquids from a condenser to a receiving flask during distillation.

A

Adapter

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5
Q

It is piece of laboratory equipment used to produce an open flame.

A

Alcohol Lamp

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6
Q

It is usually made of glass but can also be made of brass, aluminum or stainless steel.
It is otherwise called as alcohol burner or spirit lamp.

A

Alcohol Lamp

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7
Q

It is a laboratory equipment used in analytical chemistry for the dispensing of variable amount of a chemical solution and measuring that amount at the same time.

A

Alkali/Base Burette

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8
Q

This is used for base titrants. Basically, this is used in titrations where the analyte is an acid.

A

Alkali/Base Burette

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9
Q

It is a cylindrical borosilicate glass container used as a receptacle for solid and liquid substances.

A

Beaker

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10
Q

It is used as a heating device in laboratory experiments.

A

Bunsen Burner

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11
Q

It is a heat resistant apparatus used to insulate the Bunsen burner flame from the surroundings.

A

Clay Flame Shield

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12
Q

It is also used to support materials when heating.

A

Clay Flame Shield

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13
Q

It is a piece of laboratory equipment used in the process of heating substances.

A

Clay Triangle

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14
Q

It is used in conjunction with the clay shield to create a stable framework in which to place a substance – usually a solid chemical – while it is heated to a high temperature.

A

Clay Triangle

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15
Q

It is a device used in the laboratory to condense hot vapors into liquids during distillation.

A

Condenser

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16
Q

It is used to safely handle hot materials at very high temperatures.

A

Crucible Tong

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17
Q

It is an electronic instrument used to weigh objects and small amounts of substances up to the milligram level.

A

Digital Balance

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18
Q

It is a piece of laboratory equipment that is used to separate mixtures of two liquids with different boiling points.

A

Distilling Flask

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19
Q

It is used to transfer small quantities of liquids.

A

Dropper

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20
Q

It is an apparatus used for the storing and mixing of chemicals in a laboratory setting.

A

Erlenmeyer Flask

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21
Q

It is a piece of laboratory glassware used to evaporate excess solvent in a solution - most commonly water - to produce a concentrated solution or a solid precipitate of the dissolved substance.

A

Evaporating Dish

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22
Q

It is a type of flask designed for uniform heating, boiling, distillation and ease of swirling.

A

Florence Flask

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23
Q

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

A

Funnel

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24
Q

It is used to mix chemicals and liquids for laboratory purposes.

A

Glass Rod/ Stirring Rod

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25
Q

It is a hollow tube made of glass that is used to connect other pieces of lab equipment.

A

Glass Tubing

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26
Q

It is used for measuring volumes (amounts) of liquids accurately.

A

Graduated Cylinder

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27
Q

It is a piece of laboratory equipment that is used to hold things in place.

A

Iron Clamp

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28
Q

It is used to hold or support beakers during experiments while connected to the iron stand.

A

Iron Ring

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29
Q

It is used to supports the iron ring when heating substances or mixtures in a flask or beaker.

A

Iron Stand

30
Q

It is a calibrated laboratory apparatus used to transfer a measured amount of liquid from one container to another.

A

Pipette

31
Q

It is used to draw liquids in pipettes.

A

Pipettor/Aspirator

32
Q

It is used for heating small amounts of liquids or solids with a Bunsen burner or alcohol burner and is used for reacting substances.

A

Test Tube

33
Q

It is a brush used for cleaning test tubes and narrow - mouthed laboratory glasswares such as beakers and flasks.

A

Test Tube Brush

34
Q

It is attached to an iron stand and used to hold test tubes in place during heating operations and/or reactions.

A

Test Tube Clamp

35
Q

It is used for holding a test tube in place when the tube is hot or should not be touched.

A

Test Tube Holder

36
Q

It is used to hold upright multiple test tubes at the same time. It is most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.

A

Test Tube Rack

37
Q

It is used to measure temperatures or temperature changes with a high degree of precision.

A

Thermometer

38
Q

It is used to incubate samples in water at a constant temperature over a long period of time.

A

Water Bath

39
Q

It is also used to enable certain chemical reactions to occur at a controlled temperature.

A

Water Bath

40
Q

It is a bottle with a nozzle that can be easily squeezed. It is used to rinse various pieces of laboratory glass wares.

A

Wash Bottle

41
Q

It is used to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker.

A

Watch Glass

42
Q

It is placed on the support ring that is attached to the retort stand between the Bunsen burner and the beakers in order to support the beakers or other glassware or flasks during heating.

A

Wire Gauze

43
Q

It is a key concern in any science laboratory but more particularly in the chemistry laboratory

A

Safety

44
Q

Our guide to working as safely as possible in the laboratory is summarized in a simple paradigm:

A

Recognize hazards.
Assess the risk of hazards.
Minimize the risk of hazards.
Prepare for emergencies.

45
Q

It is their responsibility to keep the laboratory safe.

A

you, your classmate, laboratory assistant, instructor

46
Q

It is a collective responsibility of everyone working in the laboratory.

A

The prevention of any untoward incident in the laboratory

47
Q

The most responsible person during an experiment

A

you or the one performing the experiment

48
Q

It is your responsibility to

A

to Minimize the Risk of Hazards

49
Q

When working in the laboratory, remember to:

A
  1. Conduct Proper Behavior
  2. Wear Proper Laboratory Attire
  3. Safe Handling of Chemicals
  4. Proper Housekeeping
  5. Proper Hygiene
  6. Emergency Preparedness
50
Q

Emergency Preparedness (5)

Become thoroughly acquainted with the location and use of safety equipment and facilities such as:

A

a. Exits
b. Evacuation Route
c. Safety Shower
d. Eyewash Fountain
e. First Aid Kit

51
Q

This is a way to get out of the building if there is an emergency such as fire or earthquake. In an emergency, the main evacuation route is through the front door. The detail of this route is put near elevators, stairways and in main hallways so guests know how to get out in an emergency.

A

b. Evacuation Route

52
Q

This is an equipment designed to wash a person’s head and body which has come into contact with hazardous chemicals. This can also be used in extinguishing fires or to flush contaminants off clothing.

A

Safety Shower

53
Q

This equipment is used to flush the eyes with water when dust, irritants or chemicals enters the eye.

A

Eyewash Fountain

54
Q

It is a potential source of danger or harm.

A

Hazard

55
Q

It is the combination of the possibility of the occurrence of an unwanted incident, the severity of its consequences and the frequency of exposure to the hazard.

A

Risk

56
Q

Although chemicals are considered as ___, they will not present __ to us if we learn to recognize them and minimize their risk.

A

hazards, risk

57
Q

Chemical hazards are divided into three broad categories:

A

physical, health, and environmental hazard

58
Q

Physical Hazards

A

Explosive, Flammable, Oxidizing, Compress Gas, Corrosive to Metals

59
Q

Health Hazards

A

Toxic, Skin Irritant, Acute Toxicity, Respiratory Sensitization

60
Q

Environmental Hazard

A

Environmental and Aquatic Hazard

61
Q

There are four broad subclasses of hazards:

A
  1. Toxicity
  2. Flammability
  3. Corrosivity
  4. Reactivity
62
Q

It is a chemical that can cause injury to a living organism.

A

a toxic substance

63
Q

Toxicity (factors that determine how a living organism will react to a chemical when it enters your body)

A

a. Route of entry
b. Dose
c. Duration
d. Physical State of Toxic Substance

64
Q

Route of entry.

There are 4 ways a chemical can enter the body.

A

a. Inhalation
b. Ingestion
c. Absorption
d. Injection

65
Q

this is when the chemical enters the respiratory tract by breathing

A

Inhalation

66
Q

this is when a chemical enters the digestive tract through the mouth

A

Ingestion

67
Q

this occurs when a chemical comes in contact with the skin, thus, dermal absorption of the chemical may occur

A

Absorption

68
Q

this occurs when a chemical enters the body through a cut made in the skin by a sharp contaminated object

A

Injection

69
Q

is defined as the amount of toxic substance received at one time

A

Dose

70
Q

The duration and frequency of the exposure is classified as:

A

Acute Exposure and Chronic Exposure

71
Q

this is characterized by the rapid assimilation of the toxic substance in one or more doses within 24hours

A

Acute Exposure

72
Q

this is characterized by repeated exposures, typically of low doses, with a duration measured in months or years

A

Chronic Exposure

CHEM181 (1 decks)

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