Explain why we did not synthesize acetanilide by refluxing a mixture of aniline and

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If we directly refluxed the mixture of aniline and acetic anhydride, the acetylation could occur multiple times, resulting in a multi acetylated compound .

In order to prevent this problem, the aniline is first converted to a soluble salt. Now it can then be acetylated at manageable slow rates.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.