The melting point range is defined as the span of temperature from the point at which the crystals first begin to liquefy to the point at which the entire sample is liquid. This data can be tabulated experimentally through multiple trials for an unknown and referenced against the chemistry literature for a known compound. In Macroscale and Microscale Organic Experiments‚ 5th ed‚ Williamson notes that most pure organic solids will melt repeatedly over a narrow temperature range of 1°C. As a measure
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Determining the unknown concentration of HCl via heat of neutralization of a reaction involving strong electrolytes and weak electrolytes. Myeongwon Lee 20522885 Partner: Frank Wong TA: Afsoon CHEM 120L – Earth Science & Chem 149 Section: 004 Tuesday‚ November 26th‚ 2013 Introduction All chemical changes are accompanied by change in energy and this energy is in form of heat. The energy change of a reaction that happens at constant pressure is defined as heat of reaction or enthalpy change and the
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Among the Sierra Nevada Mountains‚ California was painted by Albert Bierstadt in 1868. Bierstadt‚ An German-American painter‚ was born January 7‚ 1830 in Solingen‚ Germany. He was only two years old when his family moved from Germany to New Bedford in Massachusetts. He developed a sensitivity for art early and made crafty crayon sketches in his youth. In 1851‚ he began to paint in oils. His oil paintings were different with respect to the odd colors he used to paint water‚ tints of green‚ etc. In
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In the article “Remorse‚ Psychopathology‚ and Psychopathy among Adolescent Offenders” by Andrew Spice‚ Jodi Viljoen‚ Kevin Douglas‚ and Stephen Hart‚ the aim is to establish the effects of shame and remorse on young offenders. Previous research doesn’t allow discussion for the implications and differences between the two emotions. The article is meant to link the “bad” guys with the bad feelings; bad is in quotations as these people are deviant‚ but not necessarily bad. In the words of the authors
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TITLE : * Analysis of an unknown acetic acid solution OBJECTIVES : * To prepare the sodium hydroxide solution‚ NaOH * To standardise the base against potassium hydrogen phthalate * To analyse the unknown acetic acid RESULTS : A. Preparation of the sodium hydroxide solution Volume of NaOH taken from the stock solution = 3.33 mL B. Standardisation of the base against potassium hydrogen phthalate | 1 | 2 | 3 | Weight KHP | 1.0000 | 1.0004 | 1.0006 | Final volume
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writing. His work includes The Grapes of Wrath‚ Cannery Row‚ The Red Pony‚ East of Eden and of course‚ Of Mice and Men. Hollywood loved Steinbeck and even made these very books in to film adaptations. Steinbeck was awarded the Nobel Prize in Literature in 1962 for his realistic but imaginative writings. In this essay I will be talking about one of John’s well known books‚ Of Mice and Men. This story is about two travelling ranch workers‚ George and Lennie‚ trying to earn enough money to get their own
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Fear of the Unknown Lord of the Flies By: Sam Baldwin 2012-05-22 Ms. Reis ENG30S Fear is one of the most powerful emotions that control the way any human being acts in certain circumstances. A distressing emotion aroused by impending evil and pain‚ whether the threat is real or imagined is described as fear. One of many prominent themes in William Golding ’s novel‚ the Lord of the Flies‚ is Fear of the unknown. From the beginning of the novel‚ the boys fear what they cannot see‚ the parts
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One doesn’t need a Ph.D. in theology to look around the world and realize something is desperately wrong. The existence of evil is one of the most vexing challenges a Christian--or any person‚ for that matter-- must grapple with. It’s occupied the minds of great Christian thinkers since the beginning‚ including St. Augustine (354-430). For much of his life he worked hard at a solution. Augustine’s approach was not just brilliant; it was practical. His insight is intellectually credible and emotionally
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Aliens Among Us: Notes Do we share our planet with alternative forms of life? •Page 1 •Every living thing on earth has a deep history •Earth is 4.5 billion years old‚ uninhabitable for the 1st 6 million •3.8 billion years ago is when life began to emerge more and more •All living organisms use DNA to encode their genetic info •They all use RNA •“In short‚ every species seems descended from a common ancestor whose attributes define what scientists mean when they say ‘life as we know it’.”
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The poem the unknown citizen written by w.h Auden portrays from the point of view of the government what or how an ideal citizen should look like. This piece is written in third person omniscient to project a non-bias perspective and that way transmit the “truth” without being affected by feelings or personal point of views. Moreover at the end of the poem the author makes a relevant turn which effect is making the reader question himself if what was depicted before is the right thing‚ if that ideal
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