evaporate quickly and which will take longer to evaporate. Give reasons for your predictions. I predict that acetone‚ or C3H6O‚ will evaporate the quickest because there is no hydrogen bonds between oxygen and hydrogen. Therefore and London Dispersion bond is created which is very weak and doesn’t take much energy to break. The second liquid to evaporate will be isopropyl. C3H8O also like acetone doesn’t allow its oxygen to bond with any hydrogen therefore not creating hydrogen bonds. Also due to the
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example of self-condensation. In this lab‚ we were performing a mixed condensation‚ so this side reaction would not be favorable. The second reaction would occur if there was excess acetone in the reaction‚ causing acetone to further react with the desired final product. The last side reaction is due to not enough acetone in the reaction‚ only able to add to one side of the carbonyl and ultimately in the wrong position. This is why it was important to pay special attention to the amounts of reactants
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Experiment 1: Quantitative assessment of Some Cellular Constituents Summary: Euglena gracilis are unicellular organisms in the Protist Kingdom. They are known to have both plant and animal characteristics. Although‚ Euglena cells contain a variety of cellular constituents‚ their cellular constituents should be presented in equal ratio. The objective of this experiment is to determine Euglena’s cellular components in cells and then to establish their cellular constituents by comparing the experimental
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acetyl acetone allow shake then addition of 0.29 g of KMnO4 in 12.5cm3 of distilled water. A strong black of 2.19 g products was obtained then brown acac after recrystallization was obtained. The equation below simply explains the reaction: 5Mn2++MnO4-+15(CH3CoCH2COCH3)3→2H2O+7H++5Mn(CH3COCHCOCH3)3 Moles for Mn(acac)3: 0.00904mol MW of MnCl2.4H2O: 143.856 gmol Mass ofMnCl2.4H2O: 1.3 g Moles of acetyl acetone: 0.0499 mol Manganese (II) chloride tetra hydrate and acetyl acetone reacts
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2: Also‚ since the recycled acetone will not be pure‚ the pretreatment using recycled acetone should be tested to see the feasibility of the proposal. Response: After evaporation‚ only acetone together with some water is recovered; the solids‚ catalyst (sulfuric acid)‚ and other stuff cannot be evaporated. Then 50 % v/v acetone-water solution can be made by adding the necessary water. In principle‚ as there are no more volatile components in the system‚ except acetone and water‚ we did not have
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between the simple and fractional distillation‚ the fractional distillations for both n-propanol and acetone provided a better distillation. The data and graphs support the statement since the fractional graphs provided a steeper slope than the simple distillation. The steeper slope represent how fast the mixture are separated throughout the distillations. For example‚ the simple distillation for acetone the slope initially started at about 20 mL at about 65.5℃ and ended at about 30 mL at 101 ℃ in which
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Experiment : 1 Tittle : Preparation of bis(acetylacetonato)copper(II) complex Objective : To synthesis the bis(acetylacetonato)copper(II) complex Introduction : A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency
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PRE LAB REPORT Reynaldo Riboul TLC and Column Chromatography October 6‚ 2013 Table of Chemicals: Chemical Hazards Mol. Wt. Density Grams Moles Acetone Flammable‚ Irritant 58.08 g mol−1 0.791 g cm−3 2.0 g 0.0344 Hexane Flammable‚ Irritant‚ Dangerous to Environment 86.18 g mol−1 .6548 g mL−1 9.0 g 0.1044 Fluorene Very toxic to aquatic life with long lasting effects 166.223 g/mol 1.202 g/mL 0.3 g 0.00180 Fluorenone Irritant 180.20 g mol−1 1.13 g/cm3 0.3 g 0.00166
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paper towel‚ then cut up into small pieces and placed in a 400 mL beaker. 2. 25 mL of acetone was added to the spinach and mixed with a glass rod‚ and then it was left to stand for 5 minutes. 3. The acetone was decanted into a separatory funnel without transferring any spinach leaves by using a powder funnel with a cotton plug. 4. An Erlenmeyer flask was used to press the spinach and 25 mL of acetone was added to the spinach leaves and mixed as before‚ repeated twice. 5. 25 mL of hexane
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those natural sources that trimyristin is easily extracted from it does take some time to achieve in lab. Ground nutmeg seeds are extracted with methyl ether and the resulting solid recrystallized from acetone and to yield pure trimyristin. Most of the other components of Nutmeg remain in the acetone as they are ether soluble. The hydrolysis of trimyristin follows acidification and yields glycerol and myristic acid. After the myristic acid is collected we will be using its melting point to determine
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