Carboxylic Acids
Muhtasari
The sharp taste of vinegar comes from ethanoic acid, the best known member of the carboxylic acids. This family is marked by the -COOH functional group, and although these are weak acids, they show all the familiar acid reactions you already know.
In this lesson you will learn that carboxylic acids form a homologous series with the -COOH group, how ethanoic acid reacts with metals, bases and carbonates as a typical acid, and how it reacts with an alcohol to form a sweet-smelling ester.
Malengo
- Describe the reaction of ethanoic acid with: (a) metals (b) bases (c) carbonates including names and formulae of the salts produced.
- [Supplement] Describe the formation of ethanoic acid by the oxidation of ethanol: (a) w ith acidified aqueous potassium manganate(VII) (b) b y bacterial oxidation during vinegar production.
- [Supplement] Describe the reaction of a carboxylic acid with an alcohol using an acid catalyst to form an ester.
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Carboxylic Acids. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- The functional group of the carboxylic acids is: A. -OH B. -COOH C. C=C D. -Cl Answer: B
- Ethanoic acid is classed as a: A. Strong acid B. Weak acid C. Base D. Neutral substance Answer: B
- Ethanoic acid reacts with magnesium to give hydrogen and: A. An ester B. A magnesium ethanoate salt C. Carbon dioxide D. An alcohol Answer: B
- Ethanoic acid reacts with sodium carbonate to give a salt, water and: A. Hydrogen B. Oxygen C. Carbon dioxide D. An ester Answer: C
- A carboxylic acid reacts with an alcohol to form water and a(n): A. Salt B. Ester C. Alkane D. Carbonate Answer: B
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Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
Aldehydes, Ketones, Carboxylic Acids, and Esters
Describe the structure and properties of aldehydes, ketones, carboxylic acids and esters
"Chemistry: Aldehydes, Ketones, Carboxylic Acids, and Esters" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/20-3-aldehydes-ketones-carboxylic-acids-and-esters. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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