The document outlines the differences between compounds and mixtures, emphasizing key definitions and characteristics of homogeneous and heterogeneous mixtures. It details three methods for separating mixtures: filtration, distillation, and chromatography, along with their applications in real-world scenarios. Homework requires students to select one separation method to explain and illustrate.

1. Aim: How to separate
mixtures
DO NOW: EXPLAIN THE DIFFERENCE BETWEEN A COMPOUND AND A
MIXTURE. GIVE ONE EXAMPLE OF A COMPOUND AND ONE EXAMPLE OF A
MIXTURE
HOMEWORK: ON A SEPARATE SHEET, PICK ONE SEPARATION METHOD,
EXPLAIN THE PROCESS, AND INCLUDE DRAWING.

2. Matter
Pure
Substance
Mixtures
Elements
Compou
nds
Homogene
ous
Heterogene
ous

4. What is the difference between a
Homogeneous and a Heterogeneous
Mixture?
Homogeneous Heterogeneous

5. Vocab
 Miscible – Capable of being mixed
 Immiscible – Cannot be mixed
 Soluble – able to be dissolved
 Insoluble – unable to be dissolved

6. What is a Solution?
 A Solution is another word for homogeneous mixture
 Parts of a solution
 solvent
 solute
 Solvent dissolves the solute; solute is what is being dissolved.

7. What is an Aqueous Solution?
 An aqueous solution is a solution in which water
is the solvent ( a substance is dissolved in water)
 Created by dissolving substance in water
 (aq) next to a substance means dissolved in
water. Ex: NaCl (aq) means NaCl (table salt) is
dissolved in water forming salt water

8. Methods to separating Mixtures
 Mixtures are separated by physical means using differences
in physical properties
 Examples of physical properties: density, melting and boiling
point, solubility
 On the following slides, we will investigate three methods to
separating mixtures
 For each method you will Turn to you partner, discuss and
write down what you see and explain how you think the
separation occurs

9. filtration
 Filtration is a separation
method used to separate out
pure substances in mixtures
Made up of particles some of
which are too large enough
in size to pass through the
filter

10. Common Use of Filters
 Air conditioners
have filters that
allow the air to pass
through while
trapping solids such
as lint and dust

11. Distillation
 Water Boils at 100 o
C
 Ethanol boils at 74.4 o
C
 distillation is a procedure by
which a solid and a liquid,
or two liquids with different
boiling points can be
separated.
 Uses the process of
evaporation and
condensation.

12. Common Use of
Distillation
 Gasoline is
obtained from
crude oil by the
process of
distillation

13. Chromatography
 The components in the
mixture have different
attractions with the
chromatography paper;
therefore, the different
components travel up
the paper at different
rates.

14. Common uses of Chromatography
 Well, in real life, gas chromatography is
often used to investigate criminal cases
like the ones featured on those shows.
 This can take the form of crime scene
testing (the analysis of blood or cloth
samples), arson verification (identifying
the chemicals responsible for a fire to
see whether there was foul play) or
blood testing after death to determine
levels of alcohol, drugs or poisonous
substances in the body

15. Summary: Name the techniques which are
suitable for separating the following mixture:
Situation Separation Technique
a. To obtain drinking water from muddy water
b. To separate gasoline from crude oil
c. To remove leaves from a swimming pool
d. To obtain pure sugar from a solution
e. To determine whether the coloring in a fruit
juice is a single substance or a mixture of
colored substance