Acetamidophenol

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Data

Data accumulated in this experiment did not differ very much, due to the fact that the unknown of #32 was used for both the microscale and the macroscale recrystallization methods. The melting point of unknown #32 was 168.8 to 170.2 degrees Celsius. The mixed melting point with both the unknown and the predicted compound was 169.4 to 171.31 degrees Celsius. The initial weight of the compound was .505 g for the unknown #32 in the macroscale recrystallization and .076 for the initial weight of the microscale recrystallization. The tube in which the crystals were weighed in was 5.656 grams and the crystal with the tube weighed 5.733 grams. Thus, the name of the compound is acetamidophenol, which correlated with the 168.8 to 170.2 degrees …show more content…

With the knowledge of the melting point, the potential name of the compound could be identified. In this specific experiment, the compound of acetamidophenol was discovered as the unknown numbered 32. Errors encountered in acquiring this information included mistakenly adding more water than was necessary during the filtering process of the macroscale recrystallization. The error reinforced the importance of being precise in these various lab experiments. As a result, we did the macroscale recrystallization over in order to attain crystals. Another error encountered throughout this process occurred when dealing with the Melting Point station. The Melting Point station caused my partner and I trouble when we were trying to acquire 2 degrees per minute rise on the timer. However, once attained completing the experiment in acquiring the melting of these crystals produced in both the macro- and micro- recrystallization went perfectly …show more content…

Melting point range is defined as the degree from the point from when the crystals first begin to liquefy to the point where the entire sample has melted.
2. The proper heating rate used to determine a compound’s melting point range 1 to 2 degrees Celsius. If you exceeded this heating rate, the literature value shown in the Table 1 would not be able to be accurate.
3. In the first case, it is possible that the compound is not pure. It could be that some charcoal is in the compound, or that the compound was denatured forming an undesired compound. In the second case, if the compound happens to disappear from the capillary tube this means that the recrystallization process must be done again ensuring that the crystals are pure.
4. The melting point values of ferrocene, acetylferrocene, adipic acid, and citric acid are 173-176 degrees Celsius, 79-86 degrees Celsius, 151 to 154 degrees Celsius, and 153 to 154 degrees Celsius respectively.
5. To differentiate between citric acid and adipic acid would be to calculate their pHs by using the concentration of the elements, and then using the pH equation in order to determine this.

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