Question

6. 50:50 mixture of Naphthalene and 4-Chloroaniline prepared, the extraction occurred using an ether solution. The mixture was prepared by a professional and is both accurate and precise. All glassware was cleaned with acetone. The SDS reports the following MPs: naphthalene = 80-82C and 4-chloroaniline = 67-700 • Mass of mixture: 1.992 g • Recovered Mass of naphthalene: 0.982 g • Mass of 4-chloroaniline: 1.032 Naphthalene MP: 79.5 - 83.9°C • 4-Chloroaniline MP: 63.5 - 71.9°C Calculate the percent yield for each compound. Write a brief analysis on both the yield recovery and the MP determination. Be sure to include the following in your answer: Based on the results, did this separation go well overall? Were the yields good and what you would expect? Were the melting points good and what you would expect? Which compound had more issues when being separated? What are 2 common errors that could account for these results? Remember cause and effect, so explain everything to the best of your ability.

Answer 1

Answer:

... Auswer As, 50:50 wixture of Nossthalene & 4-chlom aulliva Massof Theortical mass of habthalene & 4-chloro anitue wrist be each Pto nixture = 1.992 g 1.992 0.9969

Recovered mass of Napthalene - 0.982g 4-chloroauskie - 1.032 % yield of Napthaleue 0.9824 100 0.996 = 98.591. 4-Chloro anible = 1:032 0.996 x 100 % yield of = 103.619. As the 7. yield of 4-chloro auline is 103.619). » 100). So It proved posoves that these are impurities present au 4-chloro aniline to its up is beyond the veinit given in the literature as well. to Napthalene % yield is 98.59% & the up mose onless in the limit given an letterature. That proves the overall separation was not good. The geeld for hapthaleue is accepted ble but as -for 4-chloro aniline it k not acceptable. The up is not good. After a proper separation up must lie in the range.

a chloroauiline had more issues cechen bei issues cechen being separated bayan Emmons improper fraction av There can be empons during extraction uslug ether. Multiple extraction must not been performed up data. [dursing uprange must be slow & proopers] . 6 in Recording of the heating