aerobic biological organisms living in a body of water to break down organic material in a given sample over prescribed conditions. It is a widely used as an indication of the organic quality of water. The BOD value is most commonly expressed in ppm (parts per million) and is often used as a robust surrogate of the degree of organic pollution of water.5 Chemical Oxygen Demand (COD) is very similar to BOD. It also is used to measure organic compounds in water and is a useful measure of water quality. This
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3 Questions I have: ● According to Asimov‚ when do people solve problems or make discoveries‚ and why? ● How does Asimov include the scientific information of Archimedes’ and Kekule’s discoveries necessary to help understand them better? ● What was Asimov’s idea behind “Eureka! Eureka!” and how did it fit into the purpose of the story? In the story The Eureka Phenomenon by Isaac Asimov‚ Asimov includes the scientific information of Archimedes’ and Kekule’s discoveries to help the audience und
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methods for synthesizing 2-methyl-1-propanamine in a single synthetic step‚ not counting any workups. 3. Reactions of Amines (15 points). Draw the organic products of the following reactions. Indicate stereochemistry where appropriate. A reasonable answer may be “ No Reaction.” 4. Reactions of Carbonyl Compounds (15 points) Draw the organic products of the following reactions. Indicate stereochemistry where appropriate. A reasonable answer may be “ No Reaction.: 5. Reaction Mechanisms
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The OLED is a solid-state devices composed of thin films of organic molecules that create light with the application of electricity. To compare with LCD system‚ OLED is Thinner‚ Faster‚ More efficient‚ Wider‚ and more Flexible. actually‚ it will be a next generation display and the future’s light source. So to get close with new technology‚ we started on research that. Main purpose is using organic materials to produce the Red‚ Green‚ and Blue OLED‚ and to improve the efficiency. For that we have
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1 Malunggay Extract as an Organic Hand Sanitizing Gel with the Fragrance of Sampaguita Researchers Gozum‚ Ryouji S. Martin‚ Myra G. Cunanan‚ Jastin Angel D. Galang‚ Kenneth M. Bandrang‚ Alyanna L. Bautista‚ Jaspher L. Manzano‚ Jann Rainiel Adviser Mrs. Haydee J. Manalo Proposal Ingredients: ½ cup Aloe Vera 2 teaspoons of Glycerin 1 cup Ethyl Alcohol Malunggay Leaves Sampaguita Flowers Materials: Mortar and Pessel Scraper Bowl Measuring Cups Measuring Spoons
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References: Buchanan‚ G.W. "Solubility Tests and Recrystallization." CHEM 2203/2204 Organic Chemistry Laboratory Manual. By C.A. White. N.p.: n.p.‚ n.d. 21-31. Print. "IR Spectrum." Research Gate. N.p.‚ n.d. Web. 08 Oct. 2014. Wagner‚ Kathryn. "Like Dissolves Like." LIKE DISSOLVES LIKE (n.d.): n. pag. Web.
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II. Experimental Procedure : In a flask‚ 0.081 mol of 2-methycyclohexanol and 3 mL of 85% H3PO4 were mixed. The mixture was boiled under a fractional distillation column‚ and 7 mL of the distillate was collected. The organic and aqueous layers were separated and the organic layer was dried with anhydrous sodium sulfate. The product was analyzed using GC. III. Conclusion: In this experiment‚ 2-methylcyclohexanol was mixed with phosphoric acid with heat‚ to produce 3 isomers in one solution
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human population to recycle (EPA‚ 2012). Compost itself is not hard to make and can produce many different types of microorganisms; especially bacteria (Diaper‚ 1994). The microorganisms will begin to eat away at the living organic matter until it completely dies then new organic matter must be added in order to keep the cycle going‚ and the microorganisms alive. As the cycle continues the population also continues to grow and the organisms in the compost will begin to become more complex. Since the
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signifies the temperature at which the first crystal starts to melt until the temperature at which the last crystal disappears is reached. That being said‚ melting points are expressed in ranges‚ am organic compound will have a sharp range depending on the purity of the compound. Impurity of an organic substance will register an abnormal melting point based on its expected propensity observed‚ this will cause the temperature range to widen. Using this hypothesis‚ mixed melting point technique could
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(∑x)2 n n-1 = 15.1142 g – (45.0174 g/3) = 0.0542 2 Standard Deviation of Ash: s= √s2 =√0.0542 =0.2328 DISCUSSION: Ash is the inorganic residue remaining after the water and organic matter have been removed by heating in the presence of oxidizing agents‚ which provides a measure of the total amount of minerals within a food. Analytical techniques for providing information about the total mineral content are based on the fact
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