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Wednesday, January 22, 2014

Simple Distillation and Gas Chromatography

Simple Distillation and Gas Chromatograpy In this experiment we record the methods for purification of volatile compounds and that gas chromatography may be drill to quantitatively determine the relative proportions of volatile compounds in all(prenominal) sample. To do this, we performed a simple distillation of a untested mixing of Hexane-Heptane. We then self-contained three different dissevers from the distillation, enter the temperatures to individually one time. Then using chromatograms, we comp ard the three fractions we obtained and determined the percentages of Hexane-Heptane for each fraction lay in. In a gas chromatogram, the bill aras are considered to be directly proportional to the amound of sample passing the sensor in the gas chromatogram. The table below shows the areas for each breaker point in each of our printed Chromatograms and the temperature at which we collected each fraction. fork #Peak #Area of Peak Temperature at whi ch Fraction was collected 112353548.7429.9-37.7 degrees C 21No Peak Recorded38.6-39.9 degrees C 31153621.2639.9-49.2 degrees C 2 1431547.8239.9-49.2 degrees C go forthfield Over12896057.41Room Temperature These peaks were taken with a Hexane-Heptane sort We can read some(prenominal) things from these results. prime(prenominal) is that the largest area of a peak that we recorded was the material that was left everywhere from our distillation. This tells us that there was still a mountain of mixture that was not distilled. Most likely, because Heptane has a higher simmering point than Hexane, closely of the solution still left over that was recorded in the GC was Heptane. An early(a) thing that sticks come out of the closet is that there was no peak recorded in our imprimatur fraction. This could mean several different things. Because no peak was recorded, it leads us to believe that a bad fraction was taken. Because this was the second fraction tak en, there should be two peaks on the GC, one! for Hexane and the other for Heptane. This is not the case. This could be...If you indirect request to get a replete essay, order it on our website: OrderCustomPaper.com

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