The sponge acted as surface area for gas to condense on. It should have ended up being about an equal volume for fraction A and fraction C, with a lower volume of fraction B. Something like 27 drops for fraction A, 15 drops for fraction B, and 33 drops for fraction C would have been ideal.
This can not be really seen in the graph of Fractional distillation lab report distillation. Fraction B ended up with a mixture of 5.
He scrapbooks yonder every minute or three.
I think we probably should have switched the vials a few drops earlier, which would have left us with a higher percentage of cyclohexane and lower percentage of toluene. For fraction A, we ended up with a mixture of However, in theory the fractional distillation should be more efficient because of the steel sponge.
This may be why our data did not plot so well. The boiling point of toluene is higher than the boiling point of cyclohexane, so the cooler surface of the sponge helped condense toluene, but the cyclohexane still made it to the vial because of its lower boiling point.
This prevented some of the toluene from condensing into the vial during fraction A because it would condense onto the sponge and drip back down into the flask. If we turned the temperature up too much, then the temperature would shoot up when it did begin to rise and that would make it hard to get accurate data.
This may be due in part that the simple distillation was heated too fast. When switching the vials, it seemed that the temperature would hover in a 2 to 3 degree when it plateaued, then it would begin to rise, and I think we let the temperature rise a few degrees too many before switching vials.
The sponge helped improve efficiency of the distillation. This academia was first published 7 Nov and last revised 13 Feb Conclusions It appears that the fractional distillation was more efficient than the simple distillation.
It was difficult to tell if it was done plateauing or rising. Next 24 Oct Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid, the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question.
Sample Lab Report Simple and Fractional Distillation Unknown # 2 Purpose In this experiment we aim to demonstrate that we can separate two volatile compounds from a mixture due to the different chemical properties of each compound.
We will accomplish this by a separation procedure known as. Experiment 4: FRACTIONAL AND SIMPLE DISTILLATION From: Turn in your graph with the lab report.
In your discussion/conclusion; explain in detail what you see in both the simple and fractional distillation curves (explain the results in detail to get any credit!).
POSTLAB QUESTIONS. Fractional Distillation - The principle of fractional distillation is based on the establishment of a large number of theoretical vaporization-condensation cycles (theoretical plates): the apparatus of.
Sample Lab Report Distillation of Ethyl Alcohol. CHM Lab Report 1. The fractional use of copper sponge was used in distillation process which created the heat exchange area between the vapor of ethanol and liquid water. The fractional distillation process yield ml of ethanol in collecting flask, thus the hypothesis was accepted 4/4(18).
Page 4 Exp. 9, Separation by Simple and Fractional Distillation and Analysis by Gas Chromatography CHEM Lab Exp. 9 Report for Separation by Simple and Fractional Distillation.Download