Data Calculated from Experiment Solid-Liquid
Weight (g) Solid-Liquid
% Recovery Liquid-Liquid
Weight (g) Liquid-Liquid
% Recovery
Acid 0.01 20 % 0.028 56 %
Phenol 0.011 22 % 0.001 2 %
Amine 0.013 26 % 0.005 10 %
Neutral 0.03 60 % 0.026 52 %
Table 1 shows the data obtained from this experiment of both the solid-liquid extraction (on the left side of the table) and the liquid-liquid extraction method (on the right side of the table). It shows that in the solid-liquid extraction, most of the percentage recoveries were pretty low, all somewhere around 20 %. The only high percentage recovery was that of the neutral compound. This probably happened because the remaining solid that wasn’t dissolved with the acid, phenol, and amine like it should …show more content…
The acid had a higher percent recovery in the liquid-liquid extraction than the percent recovery of the acid in the solid-liquid extraction method. All of the other compounds had higher percent recoveries in the solid-liquid method than in the liquid-liquid method, but there were some really low percentages obtained from the liquid-liquid extraction that were caused by error. There were multiple things that had to be done correctly to get good results from this experiment. These include taking accurate measurements, mixing the solution or mixture for the right amount of time, giving the solution or mixture enough time to settle, carefully and accurately removing the right solution, keeping the solutions cold when adding the HCl or NaOH, and lastly, making sure the HCl or NaOH is added until the solid forms and the solution turns acidic/basic. If all of these things are done properly then the results should come out pretty accurately. A mixture of errors in these steps caused the data to be skewed and inaccurate in certain parts of this
Weight (g) Solid-Liquid
% Recovery Liquid-Liquid
Weight (g) Liquid-Liquid
% Recovery
Acid 0.01 20 % 0.028 56 %
Phenol 0.011 22 % 0.001 2 %
Amine 0.013 26 % 0.005 10 %
Neutral 0.03 60 % 0.026 52 %
Table 1 shows the data obtained from this experiment of both the solid-liquid extraction (on the left side of the table) and the liquid-liquid extraction method (on the right side of the table). It shows that in the solid-liquid extraction, most of the percentage recoveries were pretty low, all somewhere around 20 %. The only high percentage recovery was that of the neutral compound. This probably happened because the remaining solid that wasn’t dissolved with the acid, phenol, and amine like it should …show more content…
The acid had a higher percent recovery in the liquid-liquid extraction than the percent recovery of the acid in the solid-liquid extraction method. All of the other compounds had higher percent recoveries in the solid-liquid method than in the liquid-liquid method, but there were some really low percentages obtained from the liquid-liquid extraction that were caused by error. There were multiple things that had to be done correctly to get good results from this experiment. These include taking accurate measurements, mixing the solution or mixture for the right amount of time, giving the solution or mixture enough time to settle, carefully and accurately removing the right solution, keeping the solutions cold when adding the HCl or NaOH, and lastly, making sure the HCl or NaOH is added until the solid forms and the solution turns acidic/basic. If all of these things are done properly then the results should come out pretty accurately. A mixture of errors in these steps caused the data to be skewed and inaccurate in certain parts of this