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Chemistry > 3.3.9 - Carboxylic Acids and Esters > Flashcards

3.3.9 - Carboxylic Acids and Esters Flashcards

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1
Q

Carboxylic acids are produced from…

A

The oxidation of 1º alcohols under reflux

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2
Q

Carboxylic acids

A

Weak acids that slightly dissociate when in solution, forming a H+ ion and a carboxylate ion, RCOO-

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3
Q

Carboxylic acids react as acids with carbonates to form…

A

A carboxylate salt, water, and carbon dioxide

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4
Q

Solubility of carboxylic acids

A

Soluble in water as they can form hydrogen bonds with water molecules

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5
Q

Esters are formed when…

A

Carboxylic acids react with alcohols in the presence of a strong acid catalyst

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6
Q

Reaction to form esters

A

Esterification

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7
Q

Conditions for esterification

A

reflux

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8
Q

Properties of esters

A

sweet smelling compounds, low boiling points, good solvents for other polar molecules

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9
Q

Glycerol undergoes esterification to form…

A

triglyceride esters

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10
Q

biodiesel

A

An ester produced from vegetable oils and methanol in the presence of a strong acid catalyst

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11
Q

Ester hydrolysis

A

Esters into alcohols and carboxylic acids

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12
Q

Ester hydrolysis is done by…

A

Adding water but can be carried out under different conditions to produce different products

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13
Q

Saponification

A

Salt commonly used as soaps because it has hydrophilic and hydrophobic properties

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14
Q

Acid anhydride

A

Formed when water is removed from two carboxylic acids

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15
Q

Reactivity of acyl chlorides

A

React violently due to the very polar -COCl group

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16
Q

Amides

A

Reacts to form N-substituted amides

17
Q

Acyl chloride + water

A

Carboxylic Acid

18
Q

Acyl chloride + alcohol

A

Ester

19
Q

Acyl chloride + ammonia

A

Amide

20
Q

Acyl chloride + amines

A

N-substituted amide

21
Q

Aspirin

A

Ester produced from salicylic acid and ethanoic anhydride

22
Q

Ethanoyl chloride can be used to produce…

A

aspirin

23
Q

Ethanoyl is not used in industry because…

A

It is expensive and produces harmful HCl fumes as part of the reaction. Ethanoic anhydride is much safer for industrial use

24
Q

Esterification

A

Formation of esters

25
Q

Esters into alcohols and carboxylic acids

A

Ester hydrolysis

Chemistry (32 decks)

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