esters

• ester: alcohol + carboxylic acid ---> ester + water
• need a sulfuric acid catalyst and heated
• ester reaction is slow and reversile
• ester reaction

  
• esters are volatile + have a distinctive smell
• esters are used as perfumes or food colouring
• esters functional group: O-C=O
• naming esters = (alcohol)+yl (carboxylic acid)+oate