solvent because a solvent that has a strong interaction with a chemical will easily over come attraction from the chemical for the absorbent layer and move that chemical in a given period of time. Materials Food Coloring (solute) Ethanol‚ Acetone‚ Tap Water‚ Distilled Water(solvents) Pencil Ruler Scissors Filter Paper Petri Dish Variables Independent: Type of chromatography solvent Dependent: Retention in paper chromatography Controlled: Type of Chromatography paper
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The Molar Mass of a Volatile Liquid Adam Kozdrowicz Adam Li 11/05/12 Mr. McCready Purpose: The purpose of this procedure is to determine the molar mass of an unknown liquid‚ evaporate a sample of a liquid substance‚ and measure certain physical properties of the substance as it condenses. Procedure: 1. Obtain safety goggles. 2. Trim a piece of aluminum foil so that it covers the top of a small 13 x 100 mm test tube. Secure the foil with electrical tape. Make sure
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I. Ibrahium Department of Food Science and Technology‚ Faculty of Agriculture‚ AL-Azhar University‚ Cairo‚ Egypt Abstract: This work aimed to evaluate the efficiency of different organic solvents such as‚ methanol‚ ethanol‚ dichloromethane‚ acetone‚ hexane and ethyl acetate for extraction of ( flavonoids and polyphenolic compounds(TFC and TPC respectively) from the orange peel. Also‚ the effect of these solvents on the yield percentage‚ chelating activity‚ antioxidant/radical scavenging capacity
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Marissa Arias Senior Rhetoric Graf-8 April 14‚ 2014 Gel II Manicure Many women and even some men love to get their nails done‚ but hate how much time it takes to dry and on top of that they are extremely easy to ruin and chip. There is a new type of manicure trending know as Shellac‚ Gel nails‚ or No chip. According to my cosmetology instructor Samantha Rudman‚ this process takes about 35 to 40 minutes but dries in seconds. Many individuals would love to know this process even the men that
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The mechanism begins with elimination of chlorine from Ru complexes and form Ru-iso-propoxide species which is undergo β-hydride elimination leads to form ruthenium metal hydride species with the release of acetone. Insertion of ketone to Ru-H species‚ resulting formation of secondary alkoxide which is undergoes alcohol metathesis to give the alcoholic product and regenerate the original
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1.0 PURPOSE: To establish a procedure for check in and out for washing and the piston filler assembly. 2.0 SCOPE: This procedure applies to Maintenance‚ Sanitation and Production Departments. 3.0 RELATED PROCEDURES: ALL-SSOP-002-00‚ GMPS‚ and GDP’s. 4.0 RESPONSIBILITY: 4.1 The filler area representative‚ Sanitor‚ Line Mechanic‚ Line Lead‚ and Material Handler must follow this procedure. 4.2 Production Manager and Production Supervisor are responsible for training and auditing the team for compliance
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Tittle: Separation of leaves pigment. Introduction The photosynthetic pigment is used to absorb light during the process of photosynthesis. There are five pigments usually found in spinach leaves: Carotene (yellow)‚ Phaeophytin (yellow-grey)‚ Xanthophyll (yellow-brown)‚ Chlorophyll a (blue-green)‚ Chlorophyll b(green). Photosynthetic pigment is located in the chloroplast of the leaf. The function of chlorophyll a and chlorophyll b is to trap red and blue violet light when they carry out photosynthesis
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Succulence was determined according to the following equation: Succulence = Fresh Weight/Oven Dry Weight…………………........................................................(1) Measurement of Relative Water Content (RWC%);Relative Turgidity (RT %): Relative water content was estimated according to a modification of the method of Weatherly (1950); Weatherly and Barr (1962); Slatyer (1957);Fletcher et al. (1988)on the final day of the experiment and was calculated by the formula given byKramer (1983).Detached
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think of. But‚ here is some more info on the Web shooter. First‚ the "works" of the Web shooter. The Web shooter has a heating coil in it. The heating coil is used for burning acetone. When the pressure valve is opened‚ it releases the pressurized web fluid. Which then goes through the heating coil. While this happens‚ the acetone will burn off and let the chemicals bond into a fiber. Now you’re probably wondering how does it shoot out? It gets out from...GAS PROPULSION. Now can you guess which gas?
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Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid‚ the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question. Simple distillation is a separation technique which can be used to separate and purify distillates from a liquid mixture which ideally contains one volatile and one non-volatile compound. If such ideal conditions are
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