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CHEM > ANA LAB > Flashcards

ANA LAB Flashcards

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1
Q

most probable value, more reliable than any value in the set

A

Central value

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2
Q

measure of the spread of the values in the set

A

Dispersion

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3
Q

Measures the agreement between a result and the accepted value

A

Accuracy

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4
Q

The closeness of results that have been obtained in exactly the same way

A

Precision

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5
Q

Determinable and that presumably can either be avoided or corrected

A

Systematic errors

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6
Q

caused by non-ideal instrument behavior, by faulty calibrations, or by use under inappropriate conditions

A

Instrumental error

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7
Q

result from the CARELESSNESS, INATTENTION or personal limitations of the analyst

A

Personal error

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8
Q

arise from non-ideal chemical or physical behavior of analytical system

A

Method errors

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9
Q

The source of a random error cannot be pinpointed.

A

Random errors

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10
Q

Occur occasionally, are often large, and may cause a result to either high or low.

A

Gross error

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11
Q

A measurement data that appears to be inconsistent with the others in a set of data

A

Ouliers

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12
Q

potential source of danger or harm

A

Hazard

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13
Q

Chemicals that are easily ignited and burns very rapidly, releasing large amount

A

Flammable chemicals

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14
Q

chemicals that rapidly bring about an oxidation reaction by supplying oxygen or receiving electrons during oxidation.

A

Oxidizing agents

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15
Q

Chemicals that cause adverse health effects in humans or animals upon exposure.

A

Toxic chemicals

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16
Q

Established to standardize the criteria for hazards of chemicals.

A

Globally harmonized system of classifying and labelig chemicals

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17
Q

Ghs hazards statements

A

H2xx – Physical Hazard
H3xx – Health Hazard
H4xx – Environmental Hazard

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18
Q

probability of suffering harm from being exposed to a hazard or unsafe condition

A

Risks

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19
Q

coming in direct contact with a hazard or chemical in a fashion that can injure or harm

A

Exposure

20
Q

Class A

A

Waste with cyanade

21
Q

Class B

A

Acid wastes

22
Q

Class C

A

Alkali waste

23
Q

Class G

A

Organic waste

24
Q

Class D

A

Waste with inorganic waste

25
Q

it is from large container bottles

A

Stock solution

26
Q

Repacked solution

A

Working solution

27
Q

2 types of volumetric equipment

A
  1. To contain
  2. To deliver
28
Q

Examples of to contain volumetric equipments

A

Beakers, erlenmeyer flasks, volumetric flasks

29
Q

Example of to deliver volumetric equipments

A

Pipet and burette

30
Q

Volumetric equipment designed to contain a specified amount of liquid

A

To contain

31
Q

Volumetric equipment designed to deliver a specified amount of liquid

A

To deliever

32
Q

Closeness of SET of data points to one another

A

Precision

33
Q

The individual data is close with each other

A

Precision

34
Q

The closeness to the actual data (true value)

A

Accuracy

35
Q

used as a reaction container or to hold liquid or solid samples

A

Beaker

36
Q

slanted sides and narrow necks allow the contents to be mixed without the risk of spills

A

Erlenmeyer flask

37
Q

useful in titration and for boiling liquids

A

Erlenmeyer flask

38
Q

have a narrow cylindrical shape with markings along the cylinder that represents the amount of liquid being measured

A

Graduated cylinder

39
Q

used in preparation of solutions with accurate concentration

A

Volumetric flask

40
Q

have long elongated and narrow neck that have a single etched ring graduation mark that indicates the volume contained when the flask is filled to that point

A

Volumetric flask

41
Q

graduated glass or plastic pipettes that are used to measure and dispense a specific volume of liquid

A

Serological pipette

42
Q

graduated glass or plastic pipets that are used to measure and dispense a specific volume of liquid

A

Mohr pipettes

43
Q

the pipet has a reservoir between two elongated sections and a single graduation mark

A

Volumetric pipette

44
Q

graduated glass tube with a stopcock located at the bottom of the tube

A

Burette

45
Q

used to draw liquids into the pipette

A

Aspirator

CHEM (7 decks)

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