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Orgo lab results PP

Submitted by jhussaini on Thu, 05/02/2019 - 19:14

Trimyristin was isolated from nutmeg through the processes of micro-scale filtration and recrystallization, and was then reacted to produce myristic acid. The trimyristin was recrystallized twice to collect it in the highest purity. The percent yield of the second recrystallization (83.29%) is higher than percent yield of the first recrystallization (71.88%). The higher percent yield shows that a greater proportion of impurities were removed after the second recrystallization. The melting points of the trimyristin after the first and second recrystallizations also indicate the difference in purity between them. The melting point of trimyristin after the first recrystallization is 52-55 ºC, which is lower than its theoretical melting point of 56-57 ºC. A lower melting point indicates that there are more impurities in the compound. In contrast, the melting point of the trimyristin after the second recrystallization is 56-57 ºC. This value matches the theoretical melting point of trimyristin and it is higher than the previous melting point, both of which indicate its high purity. The melting point of the trimyristin that was twice recrystallized also has a narrower melting point range of 1 ºC, which demonstrates the homogeneity and purity of the substance. The melting point of myristic acid was observed at 53-54 ºC. The purity of the myristic acid is shown by the narrow melting point range. The theoretical melting point of myristic acid is 54.4 ºC. The myristic acid formed in this experiment is pure because it is close to this value.



I think your paragraph is well-structured and it is easy to understand what you're trying to pass on.

The higher percent yield does not definitively show that a greater proportion of imurities was removed. It merely suggests that this may be the case. There are other reasons I can think of why percent yields may differ.