investigators during the search. That is suspicious behavior of someone who clearly already knew the fate of Caylee. On top of acting uninterested by the search‚ investigators found that chloroform and neck breaking were both found on Casey’s computer history. Large amounts of Chloroform were found in Casey’s car. Chloroform vapors can be deadly causing respiratory or cardiac arrest. Minor symptoms it can cause are fatigue‚ dizziness and headache. This is not coincidental‚ the obvious evidence is right
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leaving it to cool to room temperature. The mass of the crystals was weighed to be 0.1203g. The percentage yield was calculated to be (0.1203/2.352) *100 = 5.11%. A sample of the crystals was then taken and dissolved in around 1 ml of deuterated chloroform and the solution was transferred was transferred to an NMR tube. The NMR tube was handed to the lab TF and the NMR spectrum was received a few hours later. Post-lab Conclusions The percent yield calculated was around 5%. The percent yield of the
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Improvements in Medicine Matthew Mongold HIS220_6 09/06/2014 Vestyn M. Ensign Improvements in Medicine The improvements in medicine since the 19th century has been truly amazing. They have gone from not having any anesthesia to the anesthesia being a normal thing now for operations from a simple tooth being pulled to major surgeries like open-heart surgery. Other things that has improved majorly is the cleanliness of the operating
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temperature and alcohols denature membrane proteins‚ and increase fluidity of membrane lipids. 2. Alcohols at high concentrations can also dissolve phospholipids and as dehydrating agent to extract water form the cell. 3. Lipid (organic) solvents like chloroform and ether dissolve the lipid molecules of the membrane and thus increase permeability. Independent variables: different types of organic solvent and water in different temperature the beetroot tissue immersed into for a fixed period of time.
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Solid-liquid extraction and liquid-liquid extraction of caffeine from tea leaves Andrew Jensen Lab partners: Jamie Pawluk‚ Joe Luong 230105559 Chem 250 L2 Oct‚4‚2012 Introduction: Extraction is the experimental procedure of obtaining a desired compound with the use of a solvent from either a liquid or solid mixture. Solid-liquid extraction involves the removal of organic compounds from solid material. This method of extraction may be achieved through extraction of the organic compound
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Polymer Chemistry Course‚ KTE 080‚ 2014 Patric Jannasch ———————————————————————————————— Laboratory procedures in polymer chemistry Polymer & Materials Chemistry 1. Free Radical Bulk Polymerization of Styrene This protocol describes the bulk polymerization of styrene at 60 oC using 2‚2´azobisisobutyronitril (AIBN) as an initiator. The monomer styrene first has to be purified before it can be used. The purification is performed in order to remove inhibitors and impurities‚ which can
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Abstract: Stevia rebaudiana is an herb with a very high medicinal value. It has more than 100 phytochemicals. It is used as sugar substitute. The extracts from leaves are used for the microbial assay and study the antimicrobial activity. The microbes used for the testing the activities are E.coli‚ Staphylococcus aureus‚ Bacillus subtilis‚ Salmonella typhi‚ Aspergillusniger‚ Candida parapsilosis‚ Trichophyton rubrum. With different concentrations of the extracts starting from 2.5µg/ml‚ 5.0µg/ml‚ 7
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infectious wounds‚ which turned gangrenous. When a wound was gangrenous‚ as it often was‚ or a soldier’s limb needed to be saved‚ physicians turned to amputation‚ which was a quick and efficient treatment in the Civil War. Contrary to popular belief‚ chloroform was equipped as a form of anesthesia‚ and surgeons were known to complete operations in ten minutes‚ allotting them more time to treat other patients. (Paul‚ para. 7). All of these early forms of battlefield medicine have helped to shape the medical
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Dec. 1‚ 2011 Casey Anthony Trial What Went Wrong? Since the day that Casey Anthony was acquitted of all felony charges people everywhere have been asking themselves‚ “What went wrong?’’. How could it be that this women‚ whom everyone was sure had murdered her child‚ walked away with only 4 misdemeanors? All of which were of making a false statement to law enforcement. Our justice system says that the innocent until proven guilty beyond reasonable doubt
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(a) (b) (c) (d) 5) Which of the following is vinyl halide? (a) CH2CL2 (b) CH2= CH-Cl (c) CH = C-Cl (d) 6) What is B in R-OH + PX5 R-X +B+ HX? (a) HPOX3 (b) H3PO3 (c) POX3 (d) H3PO2 7) Which catalyst is used in preparation of bromobenzene by bromination of benzene? (a)FeBr3 (b) HBr (c) AlBr3 (d) Br2 8) By which name the reaction CH3 - Br + Ag- F CH3F + AgBr is known? (a) Grignard (b) Wurtz (c) Fitting (d) Swartz 9) What are nucleophilic reagents
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