Carboxylic Acids mind map
- Created by: Johne21
- Created on: 11-11-18 13:39
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- Carboxylic Acids
- Structure and Bonding
- -COOH functional group
- Carboxyl group
- Weak acids
- Only partially dissociates
- CnH2nO2
- -COOH functional group
- Solubility
- Solubility decreases as chain length increases
- -COOH can form Hydrogen bonds with water
- Melting and Boiling Points
- As chain length increases BP increases due to increase in VDW
- Hydrogen bonds mean higher BP than other carbonyl compounds
- As chain length increases VDW becomes the dominate force
- Preparation
- Reluxing primary alcohol or an aldehyde with an oxidising agent
- Acidified potassium dichromate or acidified potassium dichromate
- Hydrolysis of Nitrites
- Refluxed with dilute alkali
- RCH+H20+NaOH----->RCOONa + NH3
- Liberating the acid from the salt RCOONa+HCL---->RCOOH+NaCl
- RCH+H20+NaOH----->RCOONa + NH3
- Refluxing with dilute acid
- RCN+2H20+HCL----> RCOOH + NH4Cl
- Refluxed with dilute alkali
- Reluxing primary alcohol or an aldehyde with an oxidising agent
- Reactions
- Will react with bases to form a carboxylate ion
- When reacting with sodium hydrogencarbonate salts, CO2 will be formed
- This is the carboxylic acids test
- When reacting with sodium hydrogencarbonate salts, CO2 will be formed
- Esterfication
- Forming Acyl Chlorides
- Add PCl5
- Reduction
- Adding lithal to a carboxylic acid will form a primary alcohol
- Will react with bases to form a carboxylate ion
- Structure and Bonding
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