Preparation and purification of acetylsalicylic acid Results and Data treatment (A) Preparation of aspirin i) Details about the reactants Reaction of the acetylation of salicylic acid is following From the balanced reaction above‚ it can be seen that the stoichiometry between salicylic acid and acetic anhydride is 1: 1. In this experiment‚ 21.7mmol of salicylic acid was used to react 6.0mL of acetic anhydride and salicylic acid was limiting reagent. The expected amount of salicylic
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Geoffrey Chaucer’s Canterbury Tales offers a multilevel examination of class dynamics in Medieval Society. Chaucer’s pretense of a pilgrimage allows him to unite individuals from disparate social standings as they travel towards the Canterbury Cathedral to visit the shrine of St. Thomas Beckett. Despite their common purpose and destination‚ the unity of the travelling band is still segregated according to class. Both Chaucer the narrator and the Host clearly respect the social hierarchy: the narrator’s
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Ministry Of Sound 1. From the offset Ministry of sound has had to deal with numerous environmental factors that has fashioned the club in the early stages and in the later years. Weather it has hindered its development or accelerated it is up for analysis. During the early stages logistically they had to deal with the issue of the clubs location being in a high crime rate borough of Southwark situated in Elephant & Castle. Also with “Acid House” derived music‚ the nightclub inherited the underground
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1950s Nostalgia Real and Imagined: A Structural Analysis of Stephanie Coontz’s “What We Really Miss about the 1950s” Stephanie Coontz is a professor of Family History at the Evergreen State College in Olympia Washington. She is a nationally recognized expert on the family and an award winning writer. In her 1997 book “The Way We Really Are: Coming to Terms with America’s Changing Families”‚ Stephanie Coontz wrote an essay entitled “What We Really Miss about the 1950s”. In Stephanie Coontz’s
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UNIVERSITI TEKNOLOGI MARA COURSE INFORMATION Confidential Code Course Level Credit Hours Contact Hours : : : : : CHM 556 Organic Chemistry II Degree 4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural
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Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth’s atmosphere and that of other planets is studied. Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places. It can be defined as the study of the sources‚ reactions‚ transport‚ effects‚ and fates of chemical species in the air‚ soil‚ and water environments; and the effect of human activity on these. Environmental chemistry is an interdisciplinary
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F7 Essay Writing (Kinetics) Q. Write an essay on factors which affect the rate of reactions and discuss the uses of kinetic studies. Outlines: (I) Factors affecting the Rate of Reaction (a) temperature ---- collision of molecules with different velocities and kinetic energies ---- Collision Theory and Maxwell-Boltzmann distribution ---- Arrhenius equation and Activation energy (b) concentration ---- frequency of collisions and effective collisions
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introduction Non-infectious diseases (also called Non-communicable diseases) are those diseases that are not caused by a pathogen and cannot be shared from one person to another. Disease caused by these organisms are infectious diseases. There are many kinds of non-infectious diseases. Non-infectious diseases may be caused by either the environment‚ nutritional deficiencies‚ lifestyle choices‚ or genetic inheritances. Unlike infectious diseases‚ non-infectious diseases are not communicable
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The discovery of DNA is attributed to the research of three scientists in 1951; Francis Crick‚ Maurice Wilkins‚ and James Dewey Watson. They were all later accredited with the Nobel Prize in physiology and medicine in 1962. Thanks to their discovery‚ science has been able to research and learn from DNA blueprints and use recombinant DNA technology to discover answers‚ vaccines and build immunity for many viruses. In recent years science has been using this new technology to genetically modify animals
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Did you know that in school cursive was talked about as fancy or neat and easy to write it was called all of these amazing‚ words but then schools did not teach cursive anymore and that’s terrible. In my opinion‚ cursive writing should be taught in schools. First it helps kids take notes faster or write faster. Also a study has proved that some kids that have brain damage can’t read and or write print (what this is in). So if they are not cursive they might not be able to read or write. Most importantly
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