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OCR A Level Chemistry A – Module 6 Organic Chemistry and Analysis

6.1.3
Carboxylic Acids
and Esters

Section 6.1.3 covers the water solubility of carboxylic acids, their reactions with metals, carbonates, metal oxides and alkalis, esterification with alcohols and with acid anhydrides, the hydrolysis of esters in hot aqueous acid and alkali, the formation of acyl chlorides with SOCl₂, and the use of acyl chlorides to make esters, carboxylic acids and amides. The polyester outcomes of 6.2.3 are taught on the esters page.

Exam Paper
Paper 2 & 3
H432/02 and H432/03
Learning Outcomes
6.1.3 (a) – (f)
6 learning outcomes
Sub-topics
4 lessons
Revision notes available
Exam Board
OCR
H432 (2015 onwards)

Revision Notes

4 revision notes, in the order the specification teaches them.

Summary Map

Download, print and revise the reactions of this topic at a glance.

Summary maps

Download, print and revise the reactions of this topic at a glance.

Illustration of a summary map: compounds joined by reaction arrows
Summary map · PDF

Carboxylic Acids Map

OCR A Level Chemistry A · 6.1.3 Carboxylic acids and esters

Every reaction on one A4 page: reagents, conditions and reaction type for each arrow, colour coded, with the key tests.

Download the map4 reactions · A4 landscape · print ready
Illustration of a summary map: compounds joined by reaction arrows
Summary map · PDF

Acyl Chlorides Map

OCR A Level Chemistry A · 6.1.3 Carboxylic acids and esters

Every reaction on one A4 page: reagents, conditions and reaction type for each arrow, colour coded, with the key tests.

Download the map5 reactions · A4 portrait · print ready
Illustration of a summary map: compounds joined by reaction arrows
Summary map · PDF

Esters Map

OCR A Level Chemistry A · 6.1.3 Carboxylic acids and esters

Every reaction on one A4 page: reagents, conditions and reaction type for each arrow, colour coded, with the key tests.

Download the map3 reactions · A4 landscape · print ready
Illustration of a summary map: compounds joined by reaction arrows
Summary map · PDF

Carboxylic Acids and Esters Summary Map

OCR A Level Chemistry A · 6.1.3 Carboxylic acids and esters

The whole section on one A4 page: carboxylic acids, esterification, ester hydrolysis, acid anhydrides, acyl chlorides and their use in synthesis.

Download the map6 key ideas + a data table · A4 portrait · print ready

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Written, drawn and worked exam practice on this topic.

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Revision Game

Match reagents to products, free, with your board's reagents and conditions.

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Revision Game: Carboxylic acids and esters

Turn the cards over two at a time: match reagents to what they make, and find how each product is made.

A free memory game on the reactions in this topic, with your board's reagents, conditions and spec points.

  • Two ways to playMatch each set of reagents to what the reaction makes, or see a product and find the reactant and reagents that make it.
  • Drawn the way the exam draws themEvery structure is drawn in ChemDraw, with the reagents and conditions your exam board asks for.
  • It countsRounds earn XP and keep your streak going, and every correct match shows in your KASP analytics, apart from your marks.

Study Cards

Pick a deck, then turn each card to check what you remember.

Specification

Every specification point in this topic, in the exam board's own words. Rate how confident you are with each one.

Self-assessment · 14 points

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6.1.3

  1. a

    explanation of the water solubility of carboxylic acids in terms of hydrogen bonding

    Revise
  2. b i

    reactions in aqueous conditions of carboxylic acids with metals

    Revise
  3. b ii

    reactions in aqueous conditions of carboxylic acids with carbonates

    Revise
  4. b iii

    reactions in aqueous conditions of carboxylic acids with metal oxides

    Revise
  5. b iv

    reactions in aqueous conditions of carboxylic acids with alkalis

    Revise
  6. c (i)

    esterification of carboxylic acids with alcohols in the presence of an acid catalyst (e.g. concentrated H2SO4)

    Revise
  7. c (ii)

    esterification of acid anhydrides with alcohols

    Revise
  8. d (i)

    hydrolysis of esters in hot aqueous acid to form carboxylic acids and alcohols

    Revise
  9. d (ii)

    hydrolysis of esters in hot aqueous alkali to form carboxylate salts and alcohols

    Revise
  10. e

    the formation of acyl chlorides from carboxylic acids using SOCl2

    Revise
  11. f i

    use of acyl chlorides in synthesis in formation of esters

    Revise
  12. f ii

    use of acyl chlorides in synthesis in formation of carboxylic acids

    Revise
  13. f iii

    use of acyl chlorides in synthesis in formation of primary amides

    Revise
  14. f iv

    use of acyl chlorides in synthesis in formation of secondary amides

    Revise