In I/GCSE Chemistry, we will learn about Carboxylic acids -COOH group 2D.
They belong to – COOH group so all have similar properties.
Name ends in “anoic”.
General formula: CnH (2n+1) COOH
They have strong smells b/c of the breakdown of fats.
- More carbon atom s = stronger smells
In I/GCSE Chemistry, Oxidation of ethanol produces ethanoic acid e.g. acetic acid.
Ethanol + Oxygen --> Ethanoic acid + Water
Acidity
In I/GCSE Chemistry, Strong acids: hydrogen ionises completely when dissolved in water.
Weak acids: Carboxylic acids are weak b/c they aren’t very reactive (only the – OH part is reactive)
- Not all the molecules ionise the hydrogen are released as ions into the solution.
The O in – OH has a negative charge whilst the H has a positive charge. This makes them both reactive.
Ethanoic acid + water --> Ethanoate (salt) + hydrogen
Rules
Acid + metal --> salt + hydrogen
Acid + soluble OH --> salt + water
Acid + metal carbonate --> salt + water + carbon dioxide
You got it now!