4.37C: Know that Vinegar is an Aqueous Solution Containing Ethanoic Acid

VINEGAR: Aqueous Solution containing Ethanoic acid

Diagram:

                                                Diagram showing an atom of Ethanoic Acid

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FORMATION OF VINEGAR (ETHANOIC ACID):

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• Microbial oxidation of Ethanol occurs when a bottle of wine is opened, causing bacteria in the air (Acetobacter) to use atmospheric Oxygen to oxidise Ethanol into a weak solution of Vinegar (Ethanoic acid):

Ethanol    +    Oxygen    →    Ethanoic Acid    +    Water  C2H5OH              3O2                    CH3COOH              3H2O