Thetransformation of natural energy sources to man made energy sources has been ahuge part of man’s usage of power. Charcoal‚ Yes charcoal has been part to whatthese transitions made to our society. It is originally wood then burnt an asfinal product charcoal that in our ancestors used for cooking‚ air disinfectantand some for our health. The main purpose of this essay is to renew and torecognize it’s remarkable contribution to the transformation of energy to man’sachievements that had left a mark
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Colegio de San Juan de Letran College of Liberal Arts and Sciences Experiment #3 SEPARATION AND PURIFICATION OF ORGANIC COMPOUNDS: CRYSTALLIZATION Gomez‚ Paola Anne M. DOP: 2 July 2013 Student no. : 4120403 DOS: 9 July 2013 Group: Carcinogenic Remarks: _____________________________________________________________________ Engr. C. D. Sanchez Instructor THEORETICAL DISCUSSION Crystallization is a technique which chemists use to purify solid compounds. It is
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Are we really a vain society? Do we really have a more-than-normal pride in our appearance? To answer that‚ you’d have to define normal. There’s nothing wrong with being vain‚ as long as we don’t get carried away with it. We just want to look good to look our best. And people have been working hard at looking their best for centuries. And that’s why cosmetics has such a long history. We’d like to take you through the history of cosmetics here; and let’s just see how similar we are to people living
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Thank you TRANSMITTAL 24TH MAY 2011 Prof. IMRAN SADIQ Director of School of Business Administration. UMT‚ Lahore. Dear Sir IMRAN Sadiq‚ We presented our final project in which we explained our marketing plan for business class shoe for men and explain in detail about the customer driven marketing strategies. We provided the basic information but we know despite of our best effort mistakes will occasionally happen and we are confident that you will not consider them for granted
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collection jar was weighed and recorded. In the first recrystallization‚ 1.0 gram of adipic acid without the use of decoloring charcoal was recrystallized. After securing the yielded sample in one of the weighed jars‚ the next recrystallization was performed. As previously done‚ 1.0 gram of adipic acid was recrystallized. However‚ .10 gram of the pelltized decoloring charcoal was added to the sample. The yielded adipic acid was also collected in one of the weighed jars Both samples were left without
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valve g. Anfnlk h. Anf 3. Color of flame (closed air holes): Blue on the bottom and Orange on the top 4. Deposit on porcelain dish (closed air holes): Black 5. Deposit on porcelain dish (open air holes): None 6. Effect of charcoal on flame: The blue flame turns orange 7. Matchstick on barrel in flame: The matchstick lighted 8. Illustration of Bunsen burner flame with inserted tubes 9. Scorched cardboard 10. Diagram of the flame Justification 3
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In 1871 the new German Empire was established and became one of the most important developments of the nineteenth century. This essay will outline the historical debate of whether Germany was unified by "coal and iron" or "blood and iron". The contributions of Otto von Bismarck will be looked at as well as economic‚ nationalist and military factors in the unification of German. Various sources will be used to show historians views on the subject and that of people who were present at the time.
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Recrystallization and Melting Point of Benzoic Acid Organic Chemistry 1 10/4/12 Abstract Recrystallization was done to remove impurities from the sample. The percent recovery of benzoic acid during recrystallization is 23.02%. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure sample had a lower and wider melting point range of 120.1-122.2 (C). The pure sample melting point range was 121.3-122.5 (C). These ranges helped determine
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RECRYSTALLIZATION OF ACETANILIDE De Ocampo‚ Yves Aaron Julian Q.‚ Dela Vega‚ Roderick B. Jr.‚ Elguira‚ Cedric Tristan D. Enriquez‚ Joanne B.‚ Gabat‚ John Elliot N. Group 5 2D-Medical Technology Faculty of Pharmacy‚ University of Santo Tomas ABSTRACT The experiment was executed in order to purify compounds through recrystallization. Recrystallization is the primary used operation for purifying solid organic compounds that differ in solubility at different temperature. It is a process of dissolving
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Gunpowder‚ or black powder‚ is a flammable powder and considered a “low explosive”. It consists of a mixture of Sulfur‚ Charcoal powder‚ and Potassium Nitrate (saltpeter). When put under pressure and lit‚ it will deflagrate and explode. Gunpowder was widely used in China in hand cannons (early firearms) and firecrackers (early missiles). The earliest recorded usage of gunpowder in a weapon were Chinese land mines developed in the 9th century. Gunpowder is not widely used as an explosive today‚ however
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