Chemical Reactions and their Classifications 26 October 2012 Abstract: Ordinary laboratory ware was used to determine how many of what type of chemical reactions occurred. This yielded three decomposition reactions‚ four substitution reactions‚ and three metathesis reactions. Introduction There are many different types of chemical reactions in the study of chemistry; A composition reaction (also known as synthesis) is defined as the reaction that occurs when two single compounds combine in
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this lab is to synthesise acetylsalicylic acid (aspirin) by creating a reaction between acetic anhydride and salicylic acid. This was be accomplished through the use of recrystallization. Acetic anhydride and salicylic acid are mixed together‚ and then acidified by the addition of a few drops of concentrated sulfuric acid‚ which catalyzed the reaction. The percent yield is calculated to determine the effectiveness of the reaction in preparing the desired product (aspirin). The limiting reactant of
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Evan Lovro English 101 2:00 Darin Halversen October 17‚ 2012 Reaction Paper My thoughts about the movie could be similar to other people’s opinions. The movie itself started out slow‚ I have noticed that with a lot of older movies like this one‚ it took a while for me to catch on to the point of the movie‚ or to figure out what it was about. Slowly the movie started picking up and it began to make more sense to me. There are a lot of characters that I had to write down on a piece of paper because
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International Coastal Clean-up Reaction Paper Ocean Conservancy’s International Coastal Cleanup is the world’s largest volunteer effort for ocean’s health. Each year‚ thousands of volunteers from around the globe participate‚ clearing tons of trash from coastlines‚ rivers and lakes and recording every piece of trash collected. On a beautiful‚ hot‚ sunny and a little bit rainy Saturday‚ we participated in the Annual International Coastal Cleanup at Freedom Island near the Manila-Cavite Expressway
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Social Studies Julie Shapiro “Crito” Reaction 10/14/12 The great Athenian philosopher Socrates believed in justice and overall fairness regarding the law. If a crime were committed‚ Socrates would rather take the punishment instead of seeking revenge. His morals consisted of accepting the scandal he had executed and not take vengeance. This differs from Hammurabi’s eye for an eye method. Hammurabi followed a path of abase payback and doing onto others what had been done to you. Socrates
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Reaction to Dr. David Callahan I was prepared to be interested in hearing this person speak‚ but when he started to list some “facts”‚ I started to tune out. The one that stood out for me was that‚ “billions of dollars have been lost for the music industry because of illegal downloading.” If people who downloaded the illegal music actually purchased it‚ yes- that would be more money in the big wigs pockets. However‚ many studies have shown (and I read another one on Techcruch right before seeing
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Light Dependent Reactions The light dependent reaction of photosynthesis involves the transfer of sunlight energy into two things: The production of ATP Reduction of coenzyme NADP to NADPH NADP – Nicotinamide adenine dinucleotide phosphate NADPH – Reduced NADP The energy from sunlight is used to excite an electron‚ within a primary pigment‚ to a higher energy level. The excited electron is then donated to an electron acceptor leaving the chlorophyll molecule oxidised and reducing the acceptor
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Synthesis of Aspirin (Acetylsalicylic Acid) Abstract: This experiment is about the synthesis of aspirin under laboratory conditions. Aspirin is prepared by reacting salicylic acid and acetic anhydride; in the presence of sulfuric acid. After fully dissolving the salicylic acid with acetic anhydride‚ the solution is cooled and cold water is then added. Once the crystals form they are then filtered and left to dry out. There mass is measured and recorded then the yield is calculated. Introduction:
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Gabrielle Rae V. Bueser HFH23 June 15‚ 2013 Reaction Paper: Spoliarium As we enter the hall of the National Museum of the Philippines‚ the prominence of "Spoliarium" an oil on poplar completed in 1884 by National Artist‚ Juan Luna‚ is remarkable. The super- sized painting depicts a dark hollow beneath the Roman arena referred to as the Spoliarium where the bodies of slain gladiators are being dragged away for disposal. This is the time in history when the Romans travelled to Europe and collected
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6/25/2014 Philosophy 201 Reaction to Kant Kant Kant first draws close to differentiating between a moral choice and a prudent choice. A prudent choice is a choice used in good judgment and is rational. Kant has no interest in morality being rational. A law is a law and thou shall obey it. The moral law is absolute. Thou shall not lie‚ means exactly what it says‚ thou shall not lie. No ifs‚ ands or buts about it. There is no reason why a person should lie because it is our duty as moral
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