Substituted Hydrocarbons and reactions.ppt

Hydrocarbons

1. Chapter 22: Substituted
Hydrocarbons and Their Reactions
CHEMISTRY
Matter and Change

2. Section 22.1Alkyl Halides and Aryl Halides
Section 22.2 Alcohols, Ethers,and Amines
Section 22.3 Carbonyl Compounds
Section 22.4 Other Reactions of Organic
Compounds
Section 22.5Polymers
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CHAPTER
22 Table Of Contents
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3. •Definefunctional group,
and give examples.
aliphatic compound:a
nonaromatic
hydrocarbon, such as an
alkane, an alkene, or an
alkyne
•Compare and contrast
alkyl and aryl halide
structures.
•Evaluatethe boiling
points of organic halides.
SECTION
22.1
Alkyl Halides and Aryl Halides

4. functional group
halocarbon
alkyl halide
aryl halide
A halogen atom can replace a
hydrogen atom in some hydrocarbons.
plastic
substitution reaction
halogenation
SECTION
22.1
Alkyl Halides and Aryl Halides

5. Functional Groups
•In an organic molecule, a functional
groupis an atom or group of atoms that
always reacts in a certain way.
•Addition of a functional group to a
hydrocarbon always produces a substance
with different chemical and physical
properties.
•Double and triple bonds between carbon
atoms are considered functional groups.
SECTION
22.1
Alkyl Halides and Aryl Halides

6. SECTION
22.1
Alkyl Halides and Aryl Halides
Functional Groups (Cont.)

7. Organic Compounds Containing Halogens
•Any organic compound that contains a
halogen substituent is called a halocarbon.
•An alkyl halideis an organic compound
containing a halogen atom covalently bonded
to an aliphatic carbon atom.
•An aryl halideis an organic compound
containing a halogen bonded to an aromatic
group.
SECTION
22.1
Alkyl Halides and Aryl Halides

8. Organic Compounds Containing Halogens
(cont.)
•Organic molecules containing
functional groups are given IUPAC
names based on their main chain
alkane structures.
–For alkyl halides, a prefix indicating
the halogen as follows: remove ine
and add o. Ex. Fluoro, chloro,
bromo, etc.
–If there is more than a single
halogen, they are listed
alphabetically.
SECTION
22.1
Alkyl Halides and Aryl Halides

9. Organic Compounds Containing Halogens
(cont.)
•Halocarbons have higher boiling points
because they have an increasing tendency
to form temporary dipoles.
•Dipoles attract each other, and require more
energy to separate.
•A plasticis a polymer that can be heated and
molded while relatively soft.
SECTION
22.1
Alkyl Halides and Aryl Halides

10. SECTION
22.1
Alkyl Halides and Aryl Halides
Organic Compounds Containing Halogens
(cont.)

11. Substitution Reactions
•Nearly all synthetic organic compounds
begin with petroleum.
•A substitution reactionis one in which one
atom or a group of atoms in a molecule is
replaced by another atom or group of atoms
•Hydrogen atoms in an alkane can be
replaced by atoms of halogens in a process
called halogenation.
SECTION
22.1
Alkyl Halides and Aryl Halides

12. Substitution Reactions(cont.)
SECTION
22.1
Alkyl Halides and Aryl Halides

13. •Once halogenated, alkanes can undergo
further reactions.
•Reacting an alkyl halide with a basic solution
results in replacement of the halogen atom
with an –OH group to form an alcohol.
SECTION
22.1
Alkyl Halides and Aryl Halides
Substitution Reactions(cont.)

14. Which of the following is NOT an alkyl
halide?
A.2-fluorobutane
B.1,3-dichlorobenzene
C.sodium chloride
D.bromoethane
SECTION
22.1
Section Check

15. An alkane with one or more halogen
substituents is called what?
A.aryl halide
B.metal halide
C.chlorofluorocarbon
D.alkyl halide
SECTION
22.1
Section Check

17. •Identifythe functional
groups that characterize
alcohols, ethers, and
amines.
miscible:describes two
liquids that are soluble
in each other
•Drawthe structures of
alcohols, ethers, and
amines.
•Discussthe properties
and uses of alcohols,
ethers, and amines.
SECTION
22.2
Alcohols, Ethers, and Amines

18. hydroxyl group
alcohol
denatured alcohol
ether
amine
Oxygen and nitrogen are two of the
most-common atoms found in organic
functional groups.
SECTION
22.2
Alcohols, Ethers, and Amines

19. Alcohols
•Oxygen commonly forms two covalent
bonds to form a stable octet.
•An oxygen-hydrogen group covalently
bonded to a carbon atom is called a hydroxyl
group.
•An organic compound in which a hydroxyl
group replaces a hydrogen is called an
alcohol.
SECTION
22.2
Alcohols, Ethers, and Amines

20. Alcohols (Cont.)
SECTION
22.2
Alcohols, Ethers, and Amines

21. •Alcohol is polar and mixes
completely with water.
•Denatured alcoholis ethanol
with small amounts of noxious
materials added to it.
•Alcohol names are based on
the alkane names, with the
ending –ol.
SECTION
22.2
Alcohols, Ethers, and Amines
Alcohols (Cont.)

22. •An etheris an organic compound
containing an oxygen bonded to two
carbon atoms.
SECTION
22.2
Alcohols, Ethers, and Amines

23. •Ethers have no hydrogen atoms bonded to
their oxygen atoms, so they cannot form
hydrogen bonds with each other.
•Ethers are volatile and have low boiling
points.
•Ethers with identical chains are named by the
chain followed by the word ether.
•Ethers with different chains are named in
alphabetical order followed by ether.
SECTION
22.2
Alcohols, Ethers, and Amines
Ethers (Cont.)

24. Amines
•Aminescontain nitrogen atoms
bonded to carbon atoms in
aliphatic chains or aromatic rings.
SECTION
22.2
Alcohols, Ethers, and Amines
•If more than one amino group is
present, the prefixes di, tri, tetra,
etc.are used.
•Amines have the suffix –amine.
•Amines are primary, secondary,
or tertiary depending on if there
are one, two, or three hydrogen
atoms replaced by organic
groups.

25. Which of the following is an alcohol?
A.cyclohexamine
B.1-chlorobutanol
C.bromobutene
D.butylpropyl ether
SECTION
22.2
Section Check

26. Which functional group is present in an
alcohol?
A.hydroxyl group
B.halogen
C.aromatic ring
D.amino group
SECTION
22.2
Section Check

28. •Identifythe structures of
carbonyl compounds,
including aldehydes,
ketones, carboxylic
acids, esters, and
amides.
electronegative:
indicates the relative
ability of an element’s
atoms to attract
electrons in a chemical
bond
•Discussthe properties
of compounds containing
the carbonyl group.
SECTION
22.3
Carbonyl Compounds

29. carbonyl group
aldehyde
ketone
carboxylic acid
Carbonyl compounds contain a double-
bonded oxygen in the functional group.
carboxyl group
ester
amide
condensation reaction
SECTION
22.3
Carbonyl Compounds

30. Organic Compounds Containing the
Carbonyl Group
•An oxygen atom double-bonded to a
carbon atom is a carbonyl group.
•Aldehydesare organic compounds in which
the carbonyl group is located at the end of the
carbon chain and is bonded to a carbon atom
on one side and a hydrogen on the other
side.
•Aldehydes are named with the suffix –al.
SECTION
22.3
Carbonyl Compounds

31. Organic Compounds Containing the
Carbonyl Group(cont.)
SECTION
22.3
Carbonyl Compounds

32. •A ketoneis an organic compound in which the
carbon of the carbonyl group is bonded to two
other carbon atoms.
•Ketones are named by changing the –eat the
end of the alkane name to –one, and including a
number before the name to indicate the position
of the ketone group.
SECTION
22.3
Carbonyl Compounds
Organic Compounds Containing the
Carbonyl Group(cont.)
•Ketones and aldehydes share many chemical
and physical properties because their structures
are similar.

33. •Ketones are popular solvents for moderately
polar substances.
•Ketones are somewhat soluble in water.
SECTION
22.3
Carbonyl Compounds
Organic Compounds Containing the
Carbonyl Group(cont.)

34. SECTION
22.3
Carbonyl Compounds
Organic Compounds Containing the
Carbonyl Group(cont.)

35. Carboxylic Acids
•Carboxylic acidsare organic compounds
that have a carboxyl group.
•Carboxyl groupsare carbonyls bonded to a
hydroxyl group
•Carboxylic acids are named by changing the
–aneto –anoicacid.
SECTION
22.3
Carbonyl Compounds

36. Carboxylic Acids (cont.)
SECTION
22.3
Carbonyl Compounds

37. •Carboxylic groups are represented by
–COOH.
•Carboxylic acids are polar and reactive, and
ionize in water to form acids.
SECTION
22.3
Carbonyl Compounds
Carboxylic Acids (cont.)

38. Organic Compounds Derived from
Carboxylic Acids
•An esteris any organic compound with a
carboxyl group in which the hydrogen in
the hydroxyl group is replaced by an alkyl
chain.
SECTION
22.3
Carbonyl Compounds

39. •To name an ester, write the alkyl group
followed by the name of the acid with the
–oicacid ending replaced with –oate.
•Esters are polar molecules and many are
volatile and sweet smelling.
•Many esters are found in fruits and flowers.
SECTION
22.3
Carbonyl Compounds
Organic Compounds Derived from
Carboxylic Acids (Cont.)

40. •An amide groupis an organic compound
in which the –OH group of a carboxylic acid
is replaced by a nitrogen atom bonded to
other atoms.
SECTION
22.3
Carbonyl Compounds
Organic Compounds Derived from
Carboxylic Acids (Cont.)

41. •The amide functional group is found
repeated many times in natural proteins
and some synthetic materials.
SECTION
22.3
Carbonyl Compounds
Organic Compounds Derived from
Carboxylic Acids (Cont.)

42. Condensation Reactions
•In a condensation reaction, two smaller organic
molecules combine to form a more complex
molecule, accompanied by the loss of a small
molecule such as water.
•Condensation reactions are elimination reactions
that form bonds between two atoms not
previously bonded.
SECTION
22.3
Carbonyl Compounds

43. Which of the following is the carbonyl
group?
A.COOH
B.C=O
C.CONH
2
D.R-O-R′
SECTION
22.3
Section Check

44. Which of the following does NOT contain
a carbonyl group?
A.ketones
B.esters
C.amines
D.aldehydes
SECTION
22.3
Section Check

46. •Classifyan organic reaction into one of five
categories: substitution, addition, elimination,
oxidation-reduction, or condensation.
catalyst:a substance that increases the rate of a
chemical reaction by lowering activation energies
but is not consumed in the reaction
•Usestructural formulas to write equations for
reactions of organic compounds.
•Predictthe products of common types of organic
reactions.
SECTION
22.4
Other Reactions of Organic Compounds

47. elimination reaction
dehydrogenation reaction
dehydration reaction
Classifying the chemical reactions of
organic compounds makes predicting
products of reactions much easier.
addition reaction
hydration reaction
hydrogenation reaction
SECTION
22.4
Other Reactions of Organic Compounds

48. Classifying Reactions of Organic
Substances
•Using combinations of reactions allows
chemical industries to convert simple
molecules from petroleum and natural gas
into large, complex organic molecules.
SECTION
22.4
Other Reactions of Organic Compounds

49. •The formation of alkenes from alkanes is
an elimination reaction, where a
combination of atoms is removed from two
adjacent carbon atoms forming an
additional bond between the two carbon
atoms.
Other Reactions of Organic Compounds
SECTION
22.4

50. •A reaction that eliminates two hydrogen
atoms is called a dehydrogenation
reaction.
Other Reactions of Organic Compounds
SECTION
22.4

51. •An elimination reaction in which the atoms
removed form water is called a
dehydration reaction.
Other Reactions of Organic Compounds
SECTION
22.4

52. •Addition reactionsresult when other
atoms bond to two atoms bonded by
double or triple covalent bonds.
•A hydration reactionis an addition reaction
in which a hydrogen atom and hydroxyl group
from a water molecule add to a double or
triple bond.
Other Reactions of Organic Compounds
SECTION
22.4

53. •A hydrogenation reactioninvolves the addition
of hydrogen to atoms in a double or triple bond.
•Catalysts are usually needed in hydrogenation
reactions.
•Hydrogenation reactions are commonly used to
convert liquid unsaturated fats into saturated fats
that are solid at room temperature.
Other Reactions of Organic Compounds
SECTION
22.4

54. Other Reactions of Organic Compounds
SECTION
22.4

55. •Many organic compounds can be converted to
other compounds by oxidation-reduction
reactions.
Other Reactions of Organic Compounds
SECTION
22.4
Classifying Reactions of Organic
Substances (Cont.)

56. Other Reactions of Organic Compounds
SECTION
22.4

57. Predicting Products of Organic
Reactions
•Each type of reaction—substitution,
addition, elimination, oxidation-reduction,
and condensation—can be used to predict
the products of other organic reactions of
the same types.
Other Reactions of Organic Compounds
SECTION
22.4

58. Which type of reaction normally
produces an alcohol from an alkene?
A.substitution
B.elimination
C.hydration
D.addition
SECTION
22.4
Section Check

59. What type of reaction is the following?
alkyl halide → alkene
A.halogenation
B.elimination
C.addition
D.substitution
Section Check
SECTION
22.4

61. •Diagramthe relationship
between a polymer and
the monomers from
which it forms.
molecular mass:the
mass of one molecule of
a substance
•Classifypolymerization
reactions as addition or
condensation.
•Predictpolymer
properties based on their
molecular structures and
the presence of
functional groups.
Polymers
SECTION
22.5

62. polymer
monomer
polymerization reaction
addition polymerization
Synthetic polymers are large organic
molecules made up of repeating units
that are linked together by addition or
condensation reactions.
condensation
polymerization
thermoplastic
thermosetting
Polymers
SECTION
22.5

63. The Age of Polymers
•Polymersare large molecules consisting
of many repeating structural units.
•The turn of the 20th century saw the advent
of such polymers as rubber and celluloid.
Polymers
SECTION
22.5

64. Reactions Used to Make Polymers
•A monomeris a molecule from which a
polymer is made.
•A reaction in which monomer units are
bonded together to form a polymer are called
polymerization reactions.
•In addition polymerizationall of the atoms
present in the monomers are retained in the
polymer product.
Polymers
SECTION
22.5

65. Polymers
SECTION
22.5
Reactions Used to Make Polymers(cont.)

66. Polymers
SECTION
22.5
Reactions Used to Make Polymers(cont.)

67. Polymers
SECTION
22.5
Reactions Used to Make Polymers(cont.)

68. •Condensation polymerizationtakes
place when monomers containing at least
two functional groups combine with the
loss of a small by-product, usually water.
Polymers
SECTION
22.5
Reactions Used to Make Polymers(cont.)

69. Properties and Recycling of Polymers
•Polymers are inexpensive and easy to make.
•Polymers have a wide range of properties.
•They are easy to mold into different shapes.
•Thermoplasticpolymers can be melted and
molded repeatedly into shapes that are retained
when cooled.
•Thermosettingpolymers can be molded when
first prepared, but cannot be remelted.
Polymers
SECTION
22.5

70. •As fossil fuel supplies are depleted, recycling
polymers becomes more important.
Polymers
SECTION
22.5
Properties and Recycling of Polymers (Cont.)

71. The smaller, repeating units that make up
a polymer are called ____.
A.structural units
B.polyunits
C.monomers
D.building blocks
SECTION
22.5
Section Check

72. One way polymers are synthesized is
through ____ reactions.
A.condensation
B.elimination
C.substitution
D.dehydration
SECTION
22.5
Section Check

74. Chemistry Online
Study Guide
Chapter Assessment
Standardized Test Practice
Resources
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

75. •The substitution of functional groups for hydrogen in
hydrocarbons creates a wide variety of organic
compounds.
•An alkyl halide is an organic compound that has one or
more halogen atoms bonded to a carbon atom in an
aliphatic compound.
Alkyl Halides and Aryl Halides
SECTION
22.1
Study Guide
Key Concepts

76. •Alcohols, ethers, and amines are formed when specific
functional groups substitute for hydrogen in
hydrocarbons.
•Because they readily form hydrogen bonds, alcohols
have higher boiling points and higher water solubilities
than other organic compounds.
Key Concepts
Alcohols, Ethers, and Amines
SECTION
22.2
Study Guide

77. •Carbonyl compounds are organic compounds that
contain the C=O group.
•Five important classes of organic compounds
containing carbonyl compounds are aldehydes,
ketones, carboxylic acids, esters, and amides.
Study Guide
Carbonyl Compounds
SECTION
22.3
Key Concepts

78. •Most reactions of organic compounds can be
classified into one of five categories: substitution,
elimination, addition, oxidation-reduction, and
condensation.
•Knowing the types of organic compounds reacting can
enable you to predict the reaction products.
Key Concepts
Study Guide
SECTION
22.4 Other Reactions of Organic Compounds

79. •Polymers are large molecules formed by combining
smaller molecules called monomers.
•Polymers are synthesized through addition or
condensation reactions.
•The functional groups present in polymers can be used
to predict polymer properties.
Study Guide
SECTION
22.5 Polymers
Key Concepts

80. Aryl halides contain what two groups?
A.nitrogen and aliphatic hydrocarbon chain
B.nitrogen and aromatic hydrocarbon ring
C.halogen and aromatic hydrocarbon ring
D.halogen and aliphatic hydrocarbon chain
Chapter Assessment
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

81. Amines contain which functional group?
A.–OH
B.–Br
C.R-O-R′
D.–NH
2
Chapter Assessment
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

82. Which of the following does NOT contain
the carbonyl group?
A.ketones
B.ethers
C.aldehydes
D.amides
Chapter Assessment
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

83. What is an addition reaction in which a
hydrogen atom and hydroxyl group from a
water molecule add to a double or triple
bond called?
A.elimination reaction
B.hydration reaction
C.dehydration reaction
D.hydrogenation reaction
Substituted Hydrocarbons and Their Reactions
CHAPTER
22
Chapter Assessment

84. A type of plastic that can be molded only
when first produced is called a ____ .
A.thermoplastic
B.polythermal
C.setting plastic
D.thermosetting
Substituted Hydrocarbons and Their Reactions
CHAPTER
22
Chapter Assessment

85. What are the products of this reaction?
CH
3
CH
2
Br + NaOH → ____
A.CH
3
CH
2
Na + BrOH
B.CH
3
CH
2
OH + NaBr
C.CH
3
CH
2
OHNaBr
D.CH
3
CH
3
+ Na
3
BrO
Standardized Test Practice
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

86. What type of compound does this formula
represent?
CH
3
CH
2
CH
2
COOH
A.ester
B.ether
C.carboxylic acid
D.ketone
Substituted Hydrocarbons and Their Reactions
CHAPTER
22
Standardized Test Practice

87. How many carbon atoms are present in
2-ethyl pentane?
A.2
B.5
C.7
D.8
Standardized Test Practice
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

88. What are the oxidation numbers of the
elements in H
2
SO
4
?
A.H = +1, S = +6, O = –2
B.H = +2, S = +4, O = –4
C.H = +1, S = +4, O = –1
D.H = +1, S = –10, O = +2
Standardized Test Practice
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

89. Which type of compound is formed when
a base accepts H
+
ions?
A.Brønsted-Lowery base
B.Brønsted-Lowery acid
C.conjugate base
D.conjugate acid
Standardized Test Practice
Substituted Hydrocarbons and Their Reactions
CHAPTER
22

90. This slide is intentionally blank.