1) -Mass of benzoic acrid set-apart = 0.893 g
-Percent recovery of benzoic acid = 89.3%
-Melting point of benzoic acid = 121 °C 122 °C
-Mass of 4-chloroaniline isolated = 1.2 g
-Percent recovery of 4-chloroaniline = 120%
-Melting point of 4-chloroaniline = 53°C 60 °C
-Mass of naphthalene isolated = 1.36 g
-Percent recovery of naphthalene = 136%
-Melting point of naphthalene = 65 °C 70 °C
2)The differences in the masses of the compounds before and after(prenominal) the taste may include the incident that the solids were not dry proscribed completely since the masses afterward were larger than 1 g for both 4-chloroaniline and naphthalene. The wet solids may have added more weight. ane reason to explain a mass less than 1 g fro Benzoic acid may deal with the possibility that not all of the components of the solid was collected properly. There may have also been a problem with the way that the solids were weighed on the scale and this could account for the differences.
3)The reason for the fact that the solvent employ in an extraction should have a low stewing point is so that the solvent itself can evaporate out of the mixture.
This allows for theextraction or the drawing out of the compounds so that they could be studied more effectively.
4)The extraction process would be more difficult as the higher icyity of the solvent would pretend less immiscibility with water because water is also a polar substance and so there would not be a clear and defined separation of the solvents. This makes it difficult to drain of the perforate aqueous layer and to continue with the extractions. Also, the solvent dimethylformamide would dribble prolonged to evaporate due to its higher boiling point and would take a long time to continue with the experiment.
5)The extraction that we did during the experiment is called Acid-Base Extraction because it...If you want to get a full essay, suppose it on our website: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment