TubeWooden Stir StickFresh‚ Soft Fruit (e.g.‚ Grapes‚ Strawberries‚ Banana‚ etc.) ScissorsDNA Extraction SolutionIce Cold EthanolYou Must ProvideContains sodium chloride‚ detergent and waterFor ice cold ethanol‚ store in the freezer 60 minutes before use. Procedure If you have not done so‚ prepare the ethanol by placing it in a freezer for approximately 60 minutes. Put pieces of a soft fruit into a plastic zipper bag and mash with your fist. The amount of food should be equal to the size of approximately
Premium Solubility DNA Water
solvent for extraction of antioxidants from mahua as the related extract contained the highest amount of phenolic compounds and also exhibited the strongest antioxidant capacity in all the assays used‚ while ethanol was the inefficient solvent for the extraction of phenolic compounds‚ Whereas ethanol and distilled water have been the lowest antioxidant activity. It can be concluded that‚ fruit and mahua of
Premium Protein Solvent Oxygen
similar formula and chemical properties‚ and increase in molecular size and mass. When the equations for combustion of these alcohols are listed in the order of increasing number of carbon atoms‚ Methanol 1 CH3OH(l) + 3/2 O2(g) ⋄ 1 CO2(g) + 2 H2O(l) Ethanol 1 C2H5OH(l) + 3 O2(g) ⋄ 2 CO2(g) + 3 H2O(l) Propanol 1 C3H7OH(l) + 9/2 O2(g) ⋄ 3 CO2(g) + 4 H2O(l) Butanol 1 C4H9OH(l) + 6 O2(g) ⋄ 4 CO2(g) + 5 H2O(l) Pentanol 1 C5H11OH(l) + 15/2 O2(g) ⋄ 5 CO2(g) + 6 H2O(l) The number of CO2 molecule increases
Premium Measurement Carbon dioxide Thermodynamics
IGCSE COURSEWORK - CHEMISTRY Name:Alessia Rovegno Class: S3scA Teacher: Mr tinwin Date:1-3-13 Experiment number: Ch 3 Title: Which is the Best Fuel? Mark awarded: C1 Coursework checklist (Following instructions) | Needed for | Student | Teacher | Comments | Follows written‚ diagrammatic or oral instructions to perform a single practical operation –measures water vol | 2 | | | | Use familiar apparatus and materials adequately and safely – safety glasses | 4 | | | |
Premium Heat Temperature Combustion
oxidising agents such as KMnO₄‚ Na₂Cr₂O₇ and H₂CrO₄ can be used. The reaction between alcohols and carboxylic acids will produce esters. Apparatus: Stopper‚ dropper‚ test tube‚ stopwatch‚ water bath‚ measuring cylinder (10ml) Chemical Reagents: Ethanol‚ n-Butanol‚ 2-Butanol‚ Alcohol X‚ Lucas reagent‚ 2-methyl-2-propanol‚ Concentrated H₂SO₄‚ 0.04 M Na₂Cr₂O₇‚ Glacial acetic acid Procedure (a) Lucas
Premium Alcohol Ethanol Carboxylic acid
Tetraethoxysilane (TEOS‚ 99%)‚ chloropropyltriethoxysilane (CPTES‚ 99%)‚ absolute ethanol (EtOH‚ 99%) and other chemicals were purchased from Merck and Sigma Aldrich companies and used without further purification. Ciprofloxacin was purchased from Pars Daru Company. Preparation of modified magnetic silica NPs (Fe3O4@SiO2~Cl) Initially‚ the magnetic NPs prepared through a coprecipitation method and coated with a silica layer via a modified sol-gel method [20]. In brief‚ FeCl3.6H2O (0.036 mol) and
Premium Chemistry Water Oxygen
water bath on which it is evaporated to approximately 5 ml. The 5 ml mixture was cooled to 40oC and 10 ml acidified 95% ethanol was included with vigorous stirring. The resulting mixture was placed in an ice bath for at least thirty minutes. This was again centrifuged for 5 minutes at 6000 rpm and the supernatant was discarded. The formed residue was washed with 1ml of 95% ethanol and twice with a small amount of water. The washed crude RNA was transferred in an evaporating dish and was quantitatively
Premium Ethanol Water Distillation
condensing and collecting the alcohol rich vapours released‚ as a high alcohol strength liquid (spirit). The starting material for most distillations‚ such as wine for brandy and beer for whisky‚ are usually weak alcoholic solutions (5%-7% v/v ethanol) This seems counter intuitive‚ as it would seem that if the desired product is alcohol‚ the starting solution should have a high alcohol concentration. The reason for starting with a relatively low alcohol starting material is that alcohol
Premium Distillation Ethanol
tetraphenylcyclopentadienone Overall Synthesis: CHEMICALS: wk 1: thiamine hydrochloride (1 g/student)‚ 95% ethanol (8 mls/ student)‚ 2M NaOH (5 mls/student)‚ benzaldehyde (4 mls/student) wk 2: 95% ethanol (30 mls/student) wk 3: acetic acid (6 mls/student)‚ ammonium nitrate (1 g/student)‚ 0.1g/ml cupric acetate (1.5 mls/student)‚ dichloromethane (6 mls/ student)‚ 30% acetone in heptanes (3 mls/student)‚ 95% ethanol (20 mls/student) wk 4: 1‚3 diphenylacetone (0.5 g/student)‚ triethylene glycol (5 mls/student)
Premium Chemical reaction Chemistry Ethanol
Alcohol Should Be Banned By: ******* An alcoholic beverage is a drink that contains ethanol. Alcoholic beverages are separated into three types: beers‚ wines‚ and spirits. Alcohol is a substance that a lot of people‚ mostly of age and people underage drink to "forget about their troubles or problems". People drink because they like it when it makes them feel on cloud 9‚ to feel at bliss. Alcohol is just a waste of time‚ money and patience. Drinking alcohol only makes you feel like you’re in
Premium Alcoholic beverage Ethanol Alcoholism