Question

. What happens when:
(a) Ethanol is heated with excess concentrated sulphuric acid?
(b) Ethanoic acid reacts with ethanol?
(c) Ethanoic acid reacts with sodium carbonate?​

Answer 1

Explanation:

a.Ethanol is heated with an excess of concentrated sulphuric acid at a temperature of 170°C. The gases produced are passed through sodium hydroxide solution to remove the carbon dioxide and sulphur dioxide produced from side reactions. The ethene is collected over water.

b.Ethanoic acid reacts with ethanol in the presence of concentrated sulphuric acid as a catalyst to produce the ester, ethyl ethanoate. The reaction is slow and reversible. To reduce the chances of the reverse reaction happening, the ester is distilled off as soon as it is formed.

c.Ethanoic acid reacts with sodium carbonate to produce sodium ethonoate, water and carbon dioxide.

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