3.9 Carboxylic Acids 1
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Why do Esters have Lower Boiling Points than their Carboxylic Acids?
Esters do not form Hydrogen bonds
Properties of Esters?
|> Sweet Smelling Liquids (occur naturally in fruits) |> lower boiling points than carboxylic acids |> less soluble in water than carboxylic acids
Define: Condensation reaction
Chemical reaction in which Two Molecules are Joined together with the Elimination of a Small Molecule
Carboxylate salts of fatty acids formed from the hydrolysis of triglycerides can be used as ____ ?
Soaps
Esters occur naturally in ____ ?
Fruits
Why are Esters less soluble in water than Carboxylic Acids?
Do not form Hydrogen Bonds
What is the IUPAC name of Glycerol?
Propane-1,2,3-triol
Can Esters be formed by reacting a Carboxylic acid + Acid Anhydride?
No
Acid + Metal |> ?
Salt + Hydrogen
Define: Hydrolysis
The Breaking of a Bond using Water
Functional Group: Amides
R-C(=O)-NH₂
Acid + Carbonate |> ?
Salt + Water + Carbon Dioxide
Acid + Base |> ?
Salt + Water
Define: An Acid
A substance that donates H⁺ ions
What state is an Oil at room temperature?
Liquid
What state is a Fat at room temperature?
Solid
Functional Group: Acyl Chlorides
R-C(=O)-Cl
Why don’t Carboxylic Acids with a high Mr dissolve in water?
Have a long Carbon chain that won’t dissolve
What kind of Carboxylic Acids are Soluble in Water?
Those with a low Mr
Why are Carboxylic Acids with a low Mr soluble in water?
Hydrogen Bonding to Water Molecules
Type of Reaction: Acid + Carbonate
Neutralisation
Carboxylic Acids react to form ___ salts?
Carboxylate Salts
Carboxylate salts are ____ in water because they are ____ ?
Soluble Ionic
Test for Carboxylic Acids?
Add Na₂CO₃ Fizz due to CO₂