Carboxylic Acids and Derivatives - C' Acid Structure & Chemistry

Question 1

What is the structure of a carboxylic acid?

Answer 1

R- C =O - OH

Question 2

How does a C’ Acid dissociate equation

Answer 2

R-COOH —>R-COO- +H+

Question 3

How does the carboxylate ion have stability

Answer 3

Negative charge delocalised across the O atoms , giving stability to the carboxylate ion

Question 4

Which IMFs are present in C’Acids and how does this affect their properties?

Answer 4

High melting and boiling points due to hydrogen bonding between molecules (Dimers)

Question 5

Where are C’Acids soluble and how does chain length affect this?

Answer 5

Soluble in water .

However solubility decreases with increased chain length as polar groups become less significant.

Question 6

What is the test for C’ Acids?

Answer 6

Na2CO3 - effervescence due to neutralisation and release of CO2

Question 7

How do you turn a primary alcohol into a C’ Acid

Answer 7

REFLUX

acidified dichromate ion [O]

Question 8

How do you turn an aldehyde into a C’Acid

Answer 8

Reflux

dichromate ion [O]

Question 9

How do you turn a ester into a C’Acid

Answer 9

Reflux
dil. HCl
via acid hydrolysis

Question 10

How do you turn an acid anhydride to a C’Acid?

Answer 10

Nucleophillic Addition-Elimination / Hydrolysis

Question 11

How to turn an acyl chloride into a C’Acid?

Answer 11

Nucleophillic Addition-Elimination / Hydrolysis