Difference between revisions of "Carboxylic Acid"
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[[Carboxylic Acid]]s can be [[neutralise (Chemistry)|neutralised]] to [[Product|produce]] [[Organic Compound|organic]] [[salt]]s. | [[Carboxylic Acid]]s can be [[neutralise (Chemistry)|neutralised]] to [[Product|produce]] [[Organic Compound|organic]] [[salt]]s. | ||
: [[Methanoic Acid]] + [[Potassium]] → [[Potassium Methanoate]] + [[Hydrogen]] | : [[Methanoic Acid]] + [[Potassium]] → [[Potassium Methanoate]] + [[Hydrogen]] | ||
| − | + | <math>2HCOOH + 2K → 2HCOOK + H_2</math> | |
: [[Ethanoic Acid]] + [[Magnesium Oxide]] → [[Magnesium Ethanoate]] + [[Water]] | : [[Ethanoic Acid]] + [[Magnesium Oxide]] → [[Magnesium Ethanoate]] + [[Water]] | ||
| − | + | <math>2CH_3COOH + MgO → (CH3COO)_2Mg + H_2O</math> | |
: [[Propanoic Acid]] + [[Sodium Hydroxide]] → [[Sodium Propanoate]] + [[Water]] | : [[Propanoic Acid]] + [[Sodium Hydroxide]] → [[Sodium Propanoate]] + [[Water]] | ||
| − | + | <math>C_2H_5COOH + NaOH → C_2H_5COONa + H_2O</math> | |
: [[Butanoic Acid]] + [[Magnesium Carbonate]] → [[Magnesium Butanoate]] + [[Water]] + [[Carbon Dioxide]] | : [[Butanoic Acid]] + [[Magnesium Carbonate]] → [[Magnesium Butanoate]] + [[Water]] + [[Carbon Dioxide]] | ||
| − | + | <math>2C_3H_7COOH + MgCO_3 → (C_3H_7COO)_2Mg + H_2O + CO_2</math> | |
====Esterification==== | ====Esterification==== | ||
Revision as of 13:12, 7 June 2019
Contents
Key Stage 4
Meaning
Carboxylic Acids are organic compounds with a Carbon atom which has a double bonds to an Oxygen atom and a single bond to an OH group. The general formula is CnH2nO2.
About Carboxylic Acids
- Carboxylic Acids are a homologous series of organic compounds.
- The functional group of the Carboxylic Acids is the double bond between a Carbon atom and an Oxygen atom and the single bond to an OH group.
- Carboxylic Acids are long chains of Carbon atoms covalently bonded together with the the final Carbon atom in the chain as a COOH group.
Examples
| Methanoic Acid | Ethanoic Acid | Propanoic Acid | Butanoic Acid | |
| Chemical Formula | CH2O2 | C2H4O2 | C3H6O2 | C4H8O2 |
| Structural Formula | HCOOH | CH3COOH | CH3CH2COOH | CH3CH2CH2COOH |
| Structural Diagram |  |
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| Ball and Stick Model |  |
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Reactions of Carboxylic Acids
Neutralisation
Carboxylic Acids can be neutralised to produce organic salts.
\(2HCOOH + 2K → 2HCOOK + H_2\)
\(2CH_3COOH + MgO → (CH3COO)_2Mg + H_2O\)
\(C_2H_5COOH + NaOH → C_2H_5COONa + H_2O\)
\(2C_3H_7COOH + MgCO_3 → (C_3H_7COO)_2Mg + H_2O + CO_2\)
Esterification
Carboxylic Acids may react with alcohols to produce compounds known as esters which have the functional group -COO-.
- Methanoic Acid + Ethanol → Ethyl Methanoate + Water
- <chem>HCOOH + C2H5OH -> HCOOC2H5 + H2O</chem>
- Ethanoic Acid + Ethanol → Ethyl Ethanoate + Water
- <chem>CH3COOH + C2H5OH -> CH3COOC2H5 + H2O</chem>
- Propanoic Acid + Propanol → Propyl Propanoate + Water
- <chem>C3H5COOH + C3H7OH -> C2H5COOC3H7 + H2O</chem>
- Butanoic Acid + Propanol → Propyl Butanoate + Water
- <chem>C3H5COOH + C3H7OH -> C3H5COOC3H7 + H2O</chem>