Physical Properties and Functional Groups (Grade 12 NSC Matric Physical Sciences): Flashcards
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Functional groups
Functional groups
Specific atom arrangements determining chemical & physical properties
Characteristic smell of alkenes
Characteristic smell of alkenes
Sweet or musky
Characteristic smell of carboxylic acids
Characteristic smell of carboxylic acids
Vinegar or rancid butter
Effect of hydroxyl group (-OH) on alcohol molecules
Effect of hydroxyl group (-OH) on alcohol molecules
Makes alcohol molecules polar
Solubility trend: shorter carbon chains in alcohols
Solubility trend: shorter carbon chains in alcohols
Higher water solubility
Why alcohols have higher boiling points than hydrocarbons
Why alcohols have higher boiling points than hydrocarbons
Hydrogen bonding between -OH groups
Volatility
Volatility
Tendency of molecules to enter gas phase
Effect of more halogen atoms on haloalkane volatility
Effect of more halogen atoms on haloalkane volatility
Decreases volatility
Why carboxylic acids are weak acids
Why carboxylic acids are weak acids
Only partially dissociate in solution
Dimerisation in carboxylic acids
Dimerisation in carboxylic acids
Formation of dimers with 2 H-bonds per molecule