Conclusion of Midterm :: essays research papers

defect AnalysisIn such a big testing ground, so umteen errors terminate occur and even one little one can ruine very(prenominal)thing. adept could have missed a procedure or do a procedure defectively. Another could have been using the incorrect amount of liquid or sludge. Someonecould have lost a test-tube or labeled it wrong causing the results to be mixed.Using withal often water in the solubility tests or not acquiring all measurements almostexactly accurate could be two sources of error. One big mistake could be creatinga vacuum in the fragmental Distillation part of the lab. One careless mistake couldhave been doing the calculations incorrectly. certaintyThe sludge lab is a long and complicated lab. So much can go wrong soeasily. So we had to be very careful when doing this lab. It was basically a recapof all our previous labs done this year. First we used the divisional Distillation.Then we used the Solubility lab and the density labs. Only new part wasidentifying the metal, but that wasnt very serious. So it was good that we reviewedour lab reports. This way we knew what procedures to take and what mistakes notto make. So it countms exchangeable we did everything right because the results make sense.To get and identify Fraction I, we had to do a lot. First we filtered thesludge. Then we took 25cm3 of the sludge and separated it into three parts. So wetook the outgrowth fraction and experimented on it. We purified it and mulish itssimmering point, density and solubility. We also had to see if it had an odor andwhether it was flammable or not. After doing all this we realized that this Fractionwas Isopropanol Alcohol. We came to this conclusion by feeling at our data forthe solubility, density, odor, boiling point, and flammability.To get and identify Fraction III, we had to continue from Fraction I. After getting the first fraction we had to change tubes and et 2 more fractions. We threwaway the second because it was just a leftover mix . We took the third fraction andexperimented on it. We purified it and determined its boiling point, density andsolubility. We also had to see if it had an odor and whether it was flammable ornot. After doing all this we realized that this Fraction was Water. We came to thisconclusion by looking at our data for the solubility, density, odor, boiling point,and flammability.Determining the soluble solid was hard and a rigorous procedure.