Exp-16-CARBOXYLIC ACIDS

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General formula for carboxylic acids

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41 Terms

1

General formula for carboxylic acids

RCOOH

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2

Example of a carboxylic acid

Formic acid, Butyric acid, Benzoic acid

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3

Not an example of a carboxylic acid

Nitric acid

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4

General method for preparing carboxylic acids

Oxidation of primary alcohols or aldehydes

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5

Oxidizing agent for oxidation to carboxylic acids

KMnO4

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6

Reaction of carboxylic acids with strong bases like NaOH or KOH

Production of water-soluble salts

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7

The compound liberated as a by-product when carboxylic acids react with weak base like NaHCO3

CO2

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8

Catalyst for esterification reaction between carboxylic acids and alcohols

H2SO4

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9

Product of esterification reaction between carboxylic acids and alcohols

Ester

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10

Side product of saponification

Glycerol

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11

Product of saponification

Salt of fatty acid and glycerol

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12

Carboxylic acids derived from hydrolysis of triglycerides and waxes

Fatty acids

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13

Not an example of a fatty acid

Acetic acid

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14

Reaction test for acid derivatives

Hydrolysis

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15

Products of acetic anhydride hydrolysis

Acetic acid and water

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16

Side product of acetamide hydrolysis

Ammonia

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17

Purpose of reaction with water and indicators

To determine pH

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18

Noted after warming acetic acid and water

Change in solubility

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19

Indicators used in Procedure A

Blue litmus paper and methyl orange indicator

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20

Purpose of adding NaOH to acetic acid

To neutralize the acid

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21

Noted when sodium carbonate is added to acetic acid

Evolution of gas

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22

Purpose of H2SO4 in esterification

Catalyst

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23

Alcohol used in esterification

n-propyl alcohol

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24

Purpose of adding neutral ferric chloride solution

To test for carboxylic acid

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25

Special test for tartaric and citric acid

Formation of a permanent purple color with KMnO4

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26

Purpose of repeating test with tartaric acid

To compare results

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27

Purpose of adding NaOH to tartaric acid

To neutralize the acid

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28

Color obtained after adding KMnO4 to tartaric acid

Permanent purple

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29

Test to detect esters in Procedure C

Final test

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30

Color indicating a positive result for esters

Magenta or burgundy

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31

Observation when distilled water is added to acetic anhydride

Evolution of heat

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32

Purpose of adding NaOH to acetamide

To hydrolyze the compound

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33

First step in Procedure E

Mixing with ethyl alcohol

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34

Final step in Procedure E

Testing the cleansing property

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35

Making tartaric acid alkaline in Procedure B

5% NaOH

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36

Observation in preliminary test for esters

Color produced with FeCl3

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37

Purpose of adding 6N NaOH in final test for esters

To make the solution alkaline

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38

Observation when acetamide is heated with NaOH

Evolution of Gas

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39

Addition after heating over a water bath in Procedure E

Cold saturated NaCl solution

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40

Purpose of heating soap mixture again in Procedure E

To remove excess water/ To form a solid product

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41

Final test in Procedure E

Testing the cleansing property

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