Organic Chem Unit 7

Question 1

What is structural formula (eg)?

Answer 1

CH3CH2CH2CH2OH (butanol)

Question 2

Uses of alcohol?

Answer 2

Fuels
Cleaning products
Mouthwash

Question 3

Why is there a vast array of natural and synthetic carbon compounds?

Answer 3

Carbon atoms have the ability to form families of similar compounds

Question 4

What is the name of the acid that has two -COOH functional groups/What is the name of the double -COOH functional group?

Answer 4

Dioic acid OR dicarboxylic acid/carboxylic acid

Question 5

Give an example of a dioic acid.

Answer 5

Ethanediol acid

Question 6

What is the functional group of an ester?

Answer 6

-COO

Question 7

What is the NAME of a -COO functional group?

Answer 7

Ester!

Question 8

Structural formula for ethanoic acid?

Answer 8

CH3COOH

Question 9

How do you make an ester?

Answer 9

Alcohol + Carboxylic acid —> Ester + Water

Question 10

What makes a condensation reaction?

Answer 10

Different monomers with different functional groups react
Small molecule made
The functional groups of the monomers SPECIFICALLY react together

Question 11

What is the chemical equation that reacts with alcohol to get at least a carboxylic acid?

Answer 11

Alcohol + OXIDISING AGENT —> propanoic acid + WATER

Question 12

What type of reaction is cracking and why?

Answer 12

Thermal decomposition as it’s breaking down a compound using heat to smaller compounds.

Question 13

Why do we need hydrocarbons in modern life?

Answer 13

Alkanes for fuel, alkenes for plastics or polymers

Question 14

What is the formula for fermenting alcohol?

Answer 14

Glucose (aq)—>(yeast is an ENZYME) ethanol (AQ) + carbon dioxide (g)

Question 15

Fermentation state symbol equation?

Answer 15

C6H12O6 —> 2 C2H5OH + 2CO

Question 16

Why is there a vast array of natural and synthetic carbon compounds?

Answer 16

Carbon atoms have the ability to form families of similar compounds

Question 17

What is the name of the acid that has two -COOH functional groups/What is the name of the double -COOH functional group?

Answer 17

Dioic acid OR dicarboxylic acid/carboxylic acid

Question 18

Give an example of a dioic acid.

Answer 18

Ethanediol acid

Question 19

Structural formula for ethanoic acid?

Answer 19

CH3COOH

Question 20

Do alkenes burn with a smoky flame? Why?

Answer 20

Yes as it tends to burn with incomplete combustion

Question 21

What is the name of a reaction that produces an ester?

Answer 21

Esterification reaction

Question 21

What is the general formula for carboxylic acid?

Answer 21

CnH2nO2

Question 22

What happens when you put carboxylic acid in water?

Answer 22

Hydrogen ions + alkanoate ions

Question 23

What is the chemical equation for putting carboxylic acid I water?

Answer 23

Carboxylic acid ⇌ H+ + RCOO-

Hydrogen ions + methanoate ions

Question 24

Define unsaturated

Answer 24

Molecule that contains one or more double covalent bonds

Question 25

Define saturated

Answer 25

Molecule that only contains single covalent bonds

Question 26

Why does the ionisation of carboxylic acid/putting the carboxylic acid in water show it is a WEAK acid?

Answer 26

Partially dissociates in water leaving a low concentration of H+ ions

Question 27

What happens when you react a diol and a dioic acid in a CONDENSATION POLYMERISATION reaction

Answer 27

Polyester + water

Question 28

Properties of an ester?

Answer 28

Fragrant and volatile

Question 29

Define volatile

Answer 29

Easily evaporates at room temperature

Question 30

Use of ester?

Answer 30

Food flavourings

Question 31

In addition polymerisation, does the repeating unit of the polymer have the same atoms it’s the monomer?

Answer 31

Yes (no other molecule is formed in the reaction)

Question 32

What is functional group of an amine group and carboxylic?

Answer 32

-NH2 and -COOH

Question 33

What happens when amine and carboxylic acid functional group react together?

Answer 33

Get an AMIDE bond (-CONH)