Question

During the procedure for the separation of the active ingredient of aspirin, a student stopped the experiment right after the filtration process through the alumina column. A week later, methanol had completely evaporated. The student measured the melting point for the acetylsalicylic acid and obtained a range of temperature between 110 ºC and 115 ºC. Explain why this melting point was significantly lower than expected (~135 ºC).

Name: during the procedure for the separation of the active ingredient of aspirin a student stopped the experiment right after the filtration process through the alumina column a week later methan 88781
Uploaded: 2022-06-15T09:05:45-08:00
Duration: 1 min 25 s
Channel: Shaiju T
Description: during the procedure for the separation of the active ingredient of aspirin a student stopped the experiment right after the filtration process through the alumina column a week later methan 88781

          During the procedure for the separation of the active ingredient of aspirin, a student stopped the experiment right after the filtration process through the alumina column. A week later, methanol had completely evaporated. The student measured the melting point for the acetylsalicylic acid and obtained a range of temperature between 110 ºC and 115 ºC. Explain why this melting point was significantly lower than expected (~135 ºC).

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Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Shaiju T

06/15/2022

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During the procedure for the separation of the active ingredient of aspirin, a student stopped the experiment right after the filtration process through the alumina column. A week later, methanol had completely evaporated. The student measured the melting point for the acetylsalicylic acid and obtained a range of temperature between 110 ºC and 115 ºC. Explain why this melting point was significantly lower than expected (~135 ºC).