Hypothesis. If pigment from euonymus alatus (burning bush) leaves is extracted‚ then carotenes and xanthophylls will appear when a solvent‚ made of 9 parts petroleum ether and 1 part acetone‚ goes up Whatman #1 filter paper Purpose. The purpose of this experiment was to demonstrate the presence of carotenes‚ xanthophylls‚ and chlorophylls in leaves. Methods and Materials. A piece of Whatman #1 filter paper was cut to fit into an ignition tube. One end was cut to form a V‚ and the sides of
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I (insulin-dependent) diabetes mellitus was found in a coma. His blood glucose was high‚ as well as his urine glucose‚ urine ketones‚ and serum ketones. His serum bicarbonate was <12 mEq/L. His respiration was exaggerated and his breath had an acetone odor. His blood pressure was 90/60 and his pulse weak and rapid (120). ------------------------------------------------- Top of Form 1. Define noncompliant.: a nursing diagnosis approved by the North American Nursing Diagnosis Association‚ defined
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Phenol‚ also known as carbolic acid‚ is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (-C6H5) bonded to a hydroxyl group (-OH). It is mildly acidic‚ but requires careful handling due to its propensity to cause chemical burns. Phenol was first extracted from coal tar‚ but today is produced on a large scale (about 7 billion kg/year) from petroleum. It is an important industrial commodity as a
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substance‚ diethyl ether‚ to evidently produce trimyristin with a small portion of myristicin (solid-liquid extraction). Also‚ it is good to know that due to impurity the best way purify the product of trimyristin is by recrystallization through hot acetone. NATURE OF REACTION: Power state Trimyristin Myristic acid (tetradecanoic acid) NATURE/MECHANISM OF REACTION: The temperature range should be between 56-57 °C. The organic solvents that were used
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Once the Lycopene is isolated‚ IR spectroscopy will determine its percentage actually obtained by chromatography. Procedure: A massed sample of 1.012g of tomato paste was placed in a 125mL Erlenmeyer flask. To the flask‚ 5mL of 50:50 hexane-acetone was added into the flask. After the 50:50 addition the flask was capped and shaken. After the settling of the sediments‚ the liquid portion was pipetted in a 50mL Erlenmeyer flask. The process of separating the liquid from the solid was repeated
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Buchner funnels as necessary and change the filter paper in the funnel when filtration slows due to clogging. You may need to add excess water to remove all of the spinach remnants from the blender. 3. Meanwhile‚ prepare 375 mL of petroleum ether/acetone solution in a ratio of 8:2. Pour about 300 mL of this solution into a 1000 mL separatory funnel along with an equal amount of the filtered aqueous extract. Cap and shake the funnel vigorously‚ remembering to occasionally vent the system by opening
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an electrophilic halogenation reaction. If the bromine reacted with the alkene the bromine would discolor from orange and turn clear. Experiment Part A) Solubility of Alkanes: 1 mL of nine solvents (water‚ methanol‚ n-butanol‚ ethylene‚ glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane.) was added to nine sample vials. Each vial then had 0.5 mL of the alkane decalin added to each one. The mixtures were stirred to determine if the materials dissolved. If the material was insoluble
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THE STUDY OF CHLOROPHYLL CONTENT IN VARIOUS PLANTS A Project Report Submitted by SANDEEP SETHI In partial fulfillment of the CBSE GRADE XII IN BIOLOGY AT 2015-16 CERTIFICATE This is to certify that Sandeep Sethi of grade XII‚ ST. XAVIER INTERNATIONAL SCHOOL‚ BHUBANESWAR with Registeration Number _______________________ has satisfactorily completed the project in Biology on STUDY OF CHLOROPHYLL CONTENT IN FIVE DIFFERENT SPECIES OF PLANTS‚ in partial fulfillment of the requirements
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Introduction Identification and classification of bacteria is important to make easier manipulation on the bacteria for various purposes such as for medical‚ research‚ developmental‚ and biotechnicalfieldsThe cell wall is the basis for classification of bacteria according to the Gram stain. Accordingto the chemical make up of bacterial cell wall‚ a staining procedure‚ Gram stain‚ helps usclassify bacteria into two subgroups‚ The cell wall can stain either positive or negative‚depending on its chemistry
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Lipids Biochemistry November 13‚ 2013 Lipids Lipids are families of biomolecules including fats and oils‚ waxes‚ steroids ‚ cholesterol and fat soluble vitamins. All lipids are naturally occurring compounds varying greatly in structure but share the common feature of being soluble in non polar solvents such as chloroform and ether but not in water. Lipids consist mainly of carbon and hydrogen atoms linked by non polar covalent
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