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Chemistry (Oct) > Seperation of mixtures > Flashcards

Seperation of mixtures Flashcards

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1
Q

these are prepared without any chemical reaction,its components can be separated by physical means

A

Separating homogeneous mixtures

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2
Q

Two types of mixtures

A

Heterogeneous and Homogeneous

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3
Q

Transition of matter from liquid to vapor

A

Evaporation

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4
Q

It often employed to solid-liquid mixtures where solid solute is dissolved in an liquid solvent

A

Evaporation

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5
Q

Harvesting salt form saltwater

A

Evaporation

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6
Q

Separation techniques based on the difference in solubility of substance in an appropriate solvent at an elevated temperature

A

Recrystallization

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7
Q

Amount of substance that can be dissolved in a given solvent at certain temperature

A

Solubility

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8
Q

This method requires dissolving the solid compound in an appropriate solvent at an elevated temperature

A

Recrystallization

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9
Q

Solvent at moderately volatile

A

Recrystallization

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10
Q

Applied for liquid -liquid mixtures and separation is based on the difference in boiling points between two components

A

Distillation

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11
Q

Laboratory glassware that is used to contain the mixtures that will be distilled

A

Distilling flask

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12
Q

Change vapor to liquid

A

Condenser

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13
Q

Pure acetone that is collected or product of distillation

A

Distillate

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14
Q

substance that remains in the distilling flask

A

Residue

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15
Q

What are the four types of distillation

A

Simple, fraction,vacuum,steam

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16
Q

Large difference in boiling points of the components of the solution. Single evaporation and condense

A

Simple distillation

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17
Q

Relatively samll difference series of evaporation

A

Fractional distillation

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18
Q

Very high boiling point

A

Vacuum distillation

19
Q

Heat sensitive

A

Steam distillation

20
Q

Liquid -liquid mixtures that relies on the differential partition of the components between twoo important phases

A

Chromatography

21
Q

Solvent that carries the components in chromatography separation

A

Mobile phase

22
Q

Absorbent material that holds the solution in chromatography

A

Stationary phase

23
Q

In Phases polarity classification the Mobile phase is nonpolar and stationary phase is polar

A

Normal-phase chromatography

24
Q

Mobile phase-polar
Stationary -nonpolar

A

Reversed-phased chromatography

25
Q

2 structure of stationary phase

A

Column chromatography and planar

26
Q

Stationary phase held in column

A

Column chromatography

27
Q

Stationary supported on flat plate

A

Planar chromatography

28
Q

Results og chromatography

A

result of chromatography

29
Q

What kind of separation is manual, filtration, sedimentation, decantation and centrifugation

A

Separating heterogeneous mixtures

30
Q

Separating large and visible components

A

Manual separation

31
Q

Separating using hands or tongs

A

Manual picking

32
Q

Separate rice grains from husks

A

Winnowing

33
Q

Difference in particle size of solids

A

Sieving

34
Q

Separating using magnet

A

Using magnet

35
Q

Solid-liquid suspensions and colloids example coffee grounds from brewed coffee

A

Filtration

36
Q

Filtering suspension which solid are collected

A

Filter paper

37
Q

Filtering suspension which solid are collected

A

Filter paper

38
Q

gravity filtration when the filtrate or liquid components is to be collected

A

Fluted filter paper

39
Q

Suspended solid will eventually seperate from solid gravity

A

Sedimentation

40
Q

Removal of the liquid components from the solid sedemint by pouring liquid of the container, mixing immiscible mixtures

A

Decantation

41
Q

Mixtures that are not mix well

A

Immiscible

42
Q

Seperate oil from water

A

Separating funnel

43
Q

Solid-liquid

A

Centrifugation

44
Q

Machine that is use in centrifugation

A

Centrifuge

Chemistry (Oct) (3 decks)

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