level: Carboxylic Acids
Questions and Answers List
level questions: Carboxylic Acids
| Question | Answer |
|---|---|
| what are the carboxylic acids | a family of hydrocarbon compounds containing the carboxyl functional group (COOH) |
| what do carboxylic acid names end with? | oic |
| where is the functional group written in the molecular formulae of carboxylic acids? | at the end |
| What is the first member of the carboxylic acid series | methanoic acid |
| What is the general formula of carboxylic acids? | CnH2n+1COOH |
| describe the solubility of carboxylic acids | methanoic, ethanoic, propanoic and butanoic acid are soluble in water, but soluble decreases as length of carbon chain increases |
| when dissolved in water, what is the pH of carboxylic acids? | less than 7 acidic |
| what happens when a carboxylic acid and base react | they form a salt and water neutralisation reaction |
| what salts do carboxylic acids form? | -oates propanoic acid - propanoate salt ethanoic acid - ethanoate salt butanoic acid - butanoate salt heptanoic acid - heptanoate salts |
| how are carboxylic acids made? | by the chemical oxidation of alcohols |
| what is ethanoic acid used to make? | vinegar |
| what can carboxylic acids be used for | preservatives making soaps and medicines vinegar is a dilute solution of ethanoic acid, used in household cleaning products some are naturally occuring lactic acid is found in yoghurts citric acid is found in citrus fruits methanoic acid is found in nettles and ant stings |