Abstract Oxidation was found for primary alcohol. When 6 drops of potassium dichromate and 1 drop of concentrated sulfuric acid were added to 1-pentanol‚ the color of 1-pentaol turned into dark green. In second experiment‚ precipitation was found when 6 drops of 2‚4-dinitrophenylhydrazine were added to both 5 drops of benzaldehyde and 5 drops of acetophenone. Based on these data‚ it is possible to find alcohol by oxidation and aldehyde by observing precipitation Introduction This experiments
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hear their parent’s footsteps coming toward their room. “Some teenagers have bad grades‚ having a difficult time concentrating and falling asleep‚ hours of night-time use‚ frequent complaints of being tired‚ school lateness or absences‚ and withdraw from all activities such as sports practices‚ friends‚ social engagement and music lessons.” (Source 1) I believe that teens who spend significant amounts of time can suffer depression‚
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Of all the elusive‚ seductive concepts shared by the disciplines of literary studies‚ art‚ and psychology‚ genius is among the most scoffed at‚ the least understood. To hear‚ as I have heard‚ a literature professor say that he "doesn’t believe in genius‚" as if millions of people haven’t attained I.Q. scores in excess of 140‚ or as if anyone‚ if he or she only worked vigorously enough‚ could pen a single work comparable to The Canterbury Tales or Paradise Lost or The Rape of the Lock‚ is to know
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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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In both the poems‚ “Five AM” by Estate of William Stafford and “Five Flights Up” by Elizabeth Bishop‚ they reflect upon the speaker’s early morning surroundings‚ but through different speaker’s point of view. Strafford employs stanzas‚ asyndeton‚ and personification to describe the morning surrounding and the state of mind‚ while Bishop utilizes injection‚ simple sentence and asyndeton. Strafford sets the scene with a peaceful tone and progresses into a rejuvenated tone. Bishop‚ on the other hand
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Essay #2B: Explanatory Synthesis Paper (30%) Research Prospectus Due: Monday‚ Feb. 17 in library Documentation Days!!: February 19 & 24 Mandatory Conferences: February 21 & 24 (Fri. & Mon.) Rough Draft Due: Wednesday‚ Feb. 26 (2 copies) #2B: Explanatory Synthesis Wednesday‚ March 5 Length: 6 typewritten pages (1300-1500 words) This paper will be a review of an issue related to your summary article: Work in the 21st Century‚ Green Power‚ Parenting and Education‚ Business & Advertising
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hydroxylic group attacks the positively charged nitrogen from nitric acid attaching it to the molecule. The nitrogen’s electrons are then kicked off on to the oxygen bearing a positive charge‚ creating water. This process formed an organic nitrate. Next‚ water is used to abstract hydrogen from the positively charged oxygen‚ forming hydronium. A carbonyl is formed as well as nitrogen dioxide gas. Simultaneously the oxygen separates itself from nitrogen dioxide by pushing its electrons onto the positively
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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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One of the most known theories is the Activation Synthesis Theory. J. Allan Hobson developed this theory in the late 1970s after running an experimental study on cats focusing on rapid eye movement sleep (REM) (Domhoff‚ 2003). The Activation Synthesis Theory simply states that our cerebral cortex is trying to interpret random electrical activity we have while sleeping. Hobson argued and quoted that random electrical signals from the brainstem force the cortex to make “the best of a bad job
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the gravity filter and the Hirsch funnel‚ as it was difficult to obtain the entire product from the filter paper and the sides of the funnel. As the experiment follows a semi microscale technique even a small amount of lost product yields a great loss in the yield 4. These sources of error could be minimized by doing a larger reflux in order to increase the yield. However‚ as the purpose was to simply synthesis SnI4 in order to identify the stable oxidation states (the melting point range requires
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