⚡Carboxylic Acids And Esters – GCSE IGCSE 9-1 Chemistry – Science – Succeed Lightning Video⚡


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Carboxylic Acids and Esters. Any organic chain molecule with a COOH group, which
looks like this in a structure diagram, is a carboxylic acid. They’re named for the
number of carbon atoms in the chain, just like with alkanes and alkene,s and the
four you’ll see most commonly are methanoic acid, ethanoic acid, propanoic
acid, and butanoic acid. They’re all weak acids, for example ethanoic acid is found
in vinegar. If we oxidize an alcohol, for example ethanol, either by fermentation
or by adding an oxidizing agent like acidified potassium manganate 7, we form
the corresponding carboxylic acid. They’re all soluble in oil like alkanes
but also soluble in water thanks to the polar O-H section of the molecule. They
form a salt, such as zinc ethanoate, and hydrogen gas when we react them with
a metal. Reacting with carbonates they also form a salt plus carbon dioxide and water. Adding carboxylic acids to an alcohol with a sulfuric acid catalyst
forms fragrant compounds called esters which are just the two molecules stuck
together, with an excess water molecule removed. The number of alcohol carbon
atoms gives us the first part of the name and the number of carboxylic acid
carbon atoms gives us the second part of the name, for example ethanol plus
propanoic acid gives ethyl propanoate. To learn more about carboxylic acids and
esters please check this video. To watch the whole Lightning Chemistry playlist from
the start please click here, and please click here to subscribe.

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14 Responses

  1. MAFAR Vlog says:

    First Comment

  2. Hassan Abbas says:

    Can you do whole specification videos for WJEC?

  3. Liv 2904 says:

    I really struggle with science especially chemistry but I cane across your channel earlier today and I’ve watched one of your chemistry playlists and now my knowledge is so much better, I didn’t understand any of these topic but you explain it so well. Thank you so much and now I have more confidence in tackling my GCSEs in May

  4. Basant Hassan says:

    Lesson for sound please

  5. Inferno ❶ says:

    Ayy you’re back! My g

  6. Zeref Jr says:

    bruh one of the mcqs here is wrong
    http://www.snapquiz.co.uk/percentagemass/

  7. Noor Ken says:

    I need help in English subject, any ideas where I can get help?

  8. Park Pritae says:

    Can u please do a video on ceramics and copper/aluminium/nickel etc alloys ?

  9. Shuja Abbas says:

    Can you please do a video on thermodynamics,thermal energy and temperature

  10. Animation Artist says:

    Please cover mitosis, im in year 9 so not in too much detail (A level detail). Thanks.

  11. Science Lover says:

    You haven’t done a video for ages! Come back!

  12. ZzZ Universum says:

    Where u gone?

  13. Zicheee says:

    Any chance of having a few more ccea (Northern Irish Board) video's such as bond energetics and sacrificial protection? The Northern Irish Board doesn't like playing nice with other board's specs.

  14. EmaanM says:

    great video – you should cover condensation polymerisation because i know loads of people including myself struggle with that topic for GCSE 9-1 exams thanks 🙂

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