Question

i Write an activity to show the formation of an ester in a school laboratory,​

Answer 1

[FIGURE IS IN THE ATTACHMENT]

An activity to form an Ester in a school laboratory:

Take 2 ml of ethanoic acid in a test tube and and 2 ml of pure ethanol (absolute alcohol). Add 2 drops of concentrated sulphuric acid into the test tube. Put this test tube in a beaker in hot water for about 5 minutes on a bunsen flame using a wire gauze. Pour the contents of the test tube into a 250 ml beaker containing 50 ml of water and smell the resulting solution. A sweet odour of ester is obtained .

CH3COOH + C2H5OH ---(Conc. H2SO4)---> CH3COOC2H5 + H2O.

CH3COOH- Ethanoic acid (acetic acid)

C2H5OH- (Ethanol) (Ethyl alcohol)

CH3COOC2H5- Ethyl ethanoate (Ethyl acetate)(sweet smelling Ester)

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