Lesson 3 Flashcards

1
Q

In preparing coffee using the Barako coffee
beans, you may pour the boiled coffee mixture
into a piece of cloth. Which method is being
illustrated?

A

Filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In a laboratory setting, you have a mixture of
different colored pigments. Which technique
would you likely use to separate these pigments
for analysis?

A

Chromatography

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When separating a mixture of sand, salt, and
water, what sequence of techniques could be
applied to obtain the pure salt?

A

Filtration, Evaporation, Decantation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When considering the separation of a mixture
through distillation, what property of the
components is essential for the process to be
effective?

A

Boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Suggest a separation method to be done on the
following mixture to separate its components.
Perfume
Cartridge ink
Crude oil
Rock salt and cornstarch
Saltwater and sand

A

Perfume – Use distillation
Cartridge ink – Use chromatography.
Crude oil – Use fractional distillation
Rock salt and cornstarch – Use dissolution and filtration
Saltwater and sand – Use filtration and evaporation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

o In this process, a solution is heated until it boils.
o Once it boils, the liquid solvent starts to
evaporate and leave behind the solid solutes.

A

Evaporation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

can be used to separate
solutions.

A

Recrystallization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

refers to the amount of substance
that can be dissolved in a given solvent at a
certain temperature.

A

Solubility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

used to separate
components of liquid
solutions

A

distillation
setup

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

separates
components of a solution based
on differences in boiling points
between the two liquid
components.

A

Distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Types of Distillation

A

Simple distillation
Fractional distillation
Vacuum distillation
Steam distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

is used when there is a large difference in the
boiling points of the components of the solution

A

Simple distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

is used when there is a relatively small
difference in the boiling points of the components of the solution.

A

Fractional distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

is used for compounds with very high boiling
points.

A

Vacuum distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

is used for compounds that are heat-sensitive.

A

Steam distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

is the
laboratory glassware that
is used to contain the
mixture that will be
distilled.

A

Distilling flask

17
Q

Aids in the
condensation of the
vapors or the change of
vapors to liquids

A

Condenser

18
Q

The pure substance with the lower boiling point is called the

A

distillate or the product of distillation.

19
Q

The substance that remains in the distilling flask after
distillation is called the .

A

residue

20
Q

There must be a large difference in
the boiling points of the liquid
components in order to perform
distillation as a separation technique
for liquid mixtures.

A

TRUE

21
Q

is a separation
technique that relies on the
differential partition of the
components between the two
important phases in

A

Chromatography

22
Q

The result of a chromatography experiment is called a

A

chromatogram

23
Q

Separation of Homogeneous Mixtures

A

Evaporation
Recrystallization
Distillation
Chromatography

24
Q

Separation of Heterogeneous Mixtures

A

Manual picking
Sieving
Magnets
Filtration
Sedimentation
Centrifugation

25
Q

using your
hands or tongs can be done in
separating the components of
these kinds of mixtures.

A

Manual picking

26
Q

exploits the
difference in particle size of
solids.

A

Sieving

27
Q

can be used to
attract magnetic materials.

A

Magnets

28
Q

is a process of
separating solids from liquids
by allowing the mixture to
pass through a filtering
materia

A

Filtration

29
Q

The coffee grounds collected on the filter paper are
known as the _______ while the brewed coffee is known
as the ________.

A

residue
filtrate

30
Q

is the process
in which suspended solids will
eventually separate from
liquids by gravity.

A

Sedimentation

31
Q

Once the solid particles settle
at the bottom, the liquid may
be separated through

A

decantation.

32
Q

An easier way to separate
immiscible liquids is by using
a

A

separatory funnel.

33
Q

is a
process in which the
suspension or colloid is
rotated at very high
speeds.

A

Centrifugation

34
Q

In the chemical and
pharmaceutical
industry, _______are used to
purify chemicals to
acceptable standards.

A

separation
techniques

35
Q

In the petroleum
industry, _______ is
often used as a method
to purify products.
o A refinery is an
industrial site that is
used to refine
substances like oil,
alcohol, and other
substances. c

A

distillation

36
Q

In the wastewater industry, separation techniques
such as _________ are used to recover
water from used water.

A

sedimentation, centrifugation,
microfiltration, and distillation

37
Q

In the field of health
and medicine,
________ is used
to separate the
components of blood or
urine for further
laboratory testing.

A

centrifugation

38
Q

Identify the separation techniques
1. colored clothes from white clothes
2. chalk and water
3. boiled noodles in water
4. sand and gravel
5. Baby oil and water

A

manual picking
Filtration
Filtration
Sieving
Decantation