Question

In an experiment, ethylbenzoate is hydrolysed. 5cm³ [0.03moles] of ethylbenzoate are mixed with 30cm³ of 2M NaOH solution and heated under reflux for about 15 minutes until all the oily drops have disappeared. The flask is then filled with fractional distillation and the mixture is distilled until the boiling point reaches 75⁰C to give a distillate "A". The content of the flask are allowed to cool and then slowly acidified with concentrated hydrochloric acid when a precipitate "B" separates. This precipitate is then purified by recrystallisation from water.

Sketch the apparatus for heating the mixture under reflux.

Answer 1

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