In an experiment, student put equal volumes of mixtures of ethanoic acid in water and ethanoic acid in hexane in two test-tubes as shown below. In each test-tube, equal amounts of solid hydrogen carbonate were added.

In an experiment, student put equal volumes of mixtures of ethanoic acid in water and ethanoic acid in hexane in two test-tubes as shown below. In each test-tube, equal amounts of solid hydrogen carbonate were added.

a) State the observation which was made in each test-tube.
b) Explain the observation in (a) above.

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a) Test tube 1: There is effervescence

Test tube 2: No effervescence

b) Ethanoic acid ionizes in water and the H⁺ reacts with sodium hydrogen carbonate hence effervescence. In hexane, ethanoic acid exists in form of molecules hence no reaction with the carbonate

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johnmulu answered the question on April 21, 2017 at 10:05

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