Lab Report #1 Title: Synthesis of Divanillin Abstract: The purpose of this experiment was to synthesize divanillin. This was done via the oxidative dimerization of two equivalents of vanillin‚ using enzyme horseradish peroxidase as the catalyst. Procedure: Lab Handout: Nishimura‚ R.T.; Giammanco‚ C.H.; Vosburg‚ D.A. J. Chem Educ. 2010‚ 87‚ 526-527. Discussion: Mechanism: Reaction 2 Vanillin H2O2 Divanillin 2 H2O
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precipitation reaction is‚ describe ways which one can predict whether a precipitation reaction would form or not‚ describe the uses of precipitation reactions in everyday activities and industries BACKGROUND INFORMATION: Precipitation is the formation of a solid in a solution during a chemical reaction‚ such as evaporation. A substance that causes precipitation when it is added to a solution is called a precipitant. This can occur when an insoluble substance is formed in the solution due to a reaction or
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Reaction Paper of the movie The Day After Tommorow List of disaster: The disaster film epic‚ The Day After Tomorrow™‚ depicts a world where global warming triggers an abrupt climate change‚ creating a global superstorm that unleashes unimaginable worldwide weather disasters. In the span of just a few days‚ tornados devastate Los Angeles‚ huge hail pounds Tokyo‚ and colossal tsunamis and blizzards whip New York. Tornado- A mobile‚ destructive vortex of violently rotating winds having the
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William son Eth er Synth esis Introduction In this reaction‚ an alcohol is deprotonated to form a good nucleophile‚ which then attacks the electrophile methyl iodide to form an ether. Tetrabutylammonium bromide‚ a phase transfer catalyst‚ is used to carry ions back and forth between the organic phase and the aqueous phase. OH O NaOH + NaI + H2O CH3I Before coming to lab‚ please review the following techniques: "Reluxing a reaction‚" "Extraction and washing‚" "Drying an Organic Solvent‚" "Evaporating
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Implementing IPv6 Reaction: This article is all about the implementation IPv6 versus IPv4. Using the internet is really a necessity in almost all of the organizations/companies‚ proving that technology has wide suggestions to invention and productivity. Using IPv6 will provide for much longer addresses and the possibility of many more Internet users. Implementation of IPv6 will allows us to explore new business growth models‚ and offer more people and communities fair access to information
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PEREGRINO‚ Marianne ECON103 MK2A REACTION PAPER UNEMPLOYMENT IN THE PHILIPPINES According to Philstar.com‚ unemployment rate in the Philippines rose to 7.5 percent in April from last year’s 6.9 percent. The National Economic and Development Authority (NEDA) said the country’s unemployment rate increased by 0.6 percent due to a lower level of employment amid a slightly higher labor force level. Majority of the unemployed were high school graduates (31.7 percent)‚ college graduates (21
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Reaction Paper August 30‚ 2014; Saturday; 1:00pm until 3:00pm. Our group went to ZAEC Hospital which is located at the San Jose Road. Where we did our requirement to do a manual processing to produce a radiographic film that is a visible image. Before we accomplished our task‚ we started to pick or choose who will be the one who we should expose or examine and who will be the operator in the Operating Console. And also planned who will be the one would do the next
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heat released from the candle was absorbed by the water‚ and that none of the heat was lost to the air or absorbed by the can. The small holes at the bottom of the chimney allowed some oxygen to reach the flame‚ since oxygen was required to fuel the reaction. During the
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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REACTION PAPER on GOD IS DEAD The lines‚ “God is dead. God remains dead. And we have killed him‚” can be true in literal sense. Subjectively‚ the lines presented are very agnostic and atheistic. Those are against my will and belief as a Roman Catholic faithful. The three shorter mentioned lines are three important points to be clarified about. The first line says‚ God is dead is true in literal sense. In the Scriptures‚ it written that Jesus became man and so he died as a human. Yes‚ I believe
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