Hello, In a 125-mL Erlenmeyer flask, 10-mL ethanol, 12 mL glacial acetic acid, and 15 drops of concentrated sulfuric acid (18 M), are added together with a boiling stone. Ethyl acetate is distilled.
1 Write the equation for the formation of ethyl acetate.
2 What is the purpose of sulfuric acid?
3 What happens if water is removed from the reaction mixture.
4 Write the structure of the product formed when ethanol is oxidized by sodium dichromate.© BrainMass Inc. brainmass.com December 24, 2021, 9:53 pm ad1c9bdddf
SOLUTION This solution is FREE courtesy of BrainMass!
1) CH3CH2OH + CH3CH2OH ----> CH3CH2OOCH2CH3 (ethyl acetate, an ester) + H2O, an esterification reaction
2) The sulfuric acid supplies the protons that act as a catalyst to the reaction
3) There should be no water in the mixture to being with in many cases, which allows for an enhancement of the equilibrium that allows for the formation of the acetate. Water can disrupt this formation, slowing the reaction down. Esters tend to break down in water, as well, so we want it to be dry if possible.
4) Ethanol becomes oxidized by dichromate to acetic acid, CH3CH2OOH© BrainMass Inc. brainmass.com December 24, 2021, 9:53 pm ad1c9bdddf>