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Learning objective

Describe esterification and hydrolysis reactions.

Read the explanation, check the common trap, then practise with flashcards and questions.

At a glance

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Flashcards

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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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Understand this objective

Quick explanation

Describe esterification and hydrolysis reactions

  • 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 describe esterification and hydrolysis reactions.
  • The key ideas to know are ester.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

ester

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 is the correct equation for the esterification reaction between acetic acid and ethanol?

Direct answer

A) CH3COOH + C2H5OH ⇌ CH3COOC2H5 + H2O

Key terms

  • Esterification: A reaction between a carboxylic acid and an alcohol to form an ester and water.
  • Hydrolysis: A chemical reaction in which water is used to break down a compound; in the case of esters, it produces a carboxylic acid and an alcohol.

Common trap

Confusing esterification with hydrolysis: Remember that esterification forms an ester and water, while hydrolysis breaks down an ester into a carboxylic acid and an alcohol.

Related questions

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