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Learning objective

Explain acidic behaviour of carboxylic acids.

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Topic

Carboxylic acids and derivatives (A-level only)

Subtopic

Carboxylic acids, esters and acyl derivatives (A-level only)

Aqa A Level ChemistryOrganic chemistry

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Quick explanation

Explain acidic behaviour of carboxylic acids

  • This point belongs to Carboxylic acids and derivatives (A-level only), especially Carboxylic acids, esters and acyl derivatives (A-level only).
  • You need to be able to explain acidic behaviour of carboxylic acids.
  • The key ideas to know are carboxylic acid.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

carboxylic acid

Why it matters

This objective helps connect Carboxylic acids, esters and acyl derivatives (A-level only) to exam-style questions, flashcards, and revision notes for Carboxylic acids and derivatives (A-level only).

Quick student answer

Which of the following statements correctly describes the acidic behavior of carboxylic acids?

Direct answer

A carboxylic acid donates a proton to form a carboxylate ion.

Key terms

  • Carboxylic acid: An organic compound containing a carboxyl group (-COOH) that can donate a proton.
  • Dissociation constant (Kₐ): A measure of the strength of an acid in solution, representing the equilibrium between the undissociated acid and its ions.

Common trap

Confusing carboxylic acids with alcohols: Remember that carboxylic acids can donate a proton due to the presence of the carboxyl group, while alcohols cannot.

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