Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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reactants used and the amounts of products formed in a chemical reaction”. Basically‚ Stoichiometry is the science of counting and studying the relationship between the amounts of the reactants to the product. To think of stoichiometry outside of chemistry‚ imagine a bookshelf. To assemble the bookshelf you may need 3 planks of wood‚ 1 giant plank of wood‚ and 20 nails. Even though the amount of the reactants is high‚ the product would be only one bookshelf. Stoichiometry is basically studying the
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November 26‚ 2011 A Separate Peace Symbolism In John Knowles’ novel‚ A Separate Peace‚ symbolism is used throughout the story especially in chapter 6. In Ch. 6‚ Finny‚ the main character of the novel is describing both of the rivers that are in the environs of the Devon School‚ the Nagumsett and the Devon River. These descriptions of the two rivers do not just expand our knowledge of the surrounding geography of the Dxevon School‚ but also symbolize the different stages of Gene and Finny’s
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Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial
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John Knowles’s separate peace is not a classic example of a novel‚ because the book was not analytical or explanatory. I believe Knowles’s goal was to create an impression of good vs. evil‚ and to communicate social values. A separate piece had many symbols and underlying themes in it‚ which right away is a tip off that Knowles has more than a classic-definition novel here. Knowles used impressions like evil always wins‚ again going against the theory of a classic novel. By focusing on our right
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Judgment in the House of Sand and Fog People place judgment on one another every day based on differences. Sometimes it is done subconsciously; sometimes it is done on purpose. In the book The House of Sand and Fog‚ by Andre Dubus III‚ two different cultures were represented; Kathy represented the culture of the western civilization‚ whereas Behrani represented the culture of Persians. People judge one another based on unimportant things‚ and get judged based on those same things as well. Two
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-457200315912500RATES OF FERMENTATION OF FRUIT AND VEGETABLE JUICES -1598295325501000OBJECTIVE The objective of this project is to study the rates of fermentation of the following fruit or vegetable juices. Apple juice 125412559309000Carrot juice INTRODUCTION Fermentation is a slow decomposition of complex organic compound into simpler compounds by the action of enzymes. Enzymes are complex organic compounds‚ generally proteins. Examples of fermentation are souring of milk curd‚ bread making
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Syllabus of Second Year (Semester III/IV)‚ MBA (Master of Business Administration) Course Code : MBT601-1 Course : Integrated Marketing Communication L: 3 Hrs.‚ T : 1 Hr.‚ Per Week Total Credits: 7 Objectives: The objective of this course is to provide the students with knowhow about Marketing Communication‚ Integration concepts‚ Media planning and buying concepts. Learning this course would equip the students in building there career in advertising and media
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. I am writing this letter to inform you on reasons why I would recommend your book‚ A Separate Peace. After reading A Separate Peace‚ this book is surely one of the best books I ever read. Its interesting story line that is very easy to follow kept me curious on what was happening next. A Separate Peace’s beauty‚ vitality and purpose will keep every reader extremely interested. I would highly recommend this novel to young adults. I was very interested in the story’s beauty. You gave me a more
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and that compounds are formed by combination by two or more atoms. Work Cited http://www.iep.utm.edu/aristotl/ http://profmokeur.ca/chemistry/history_of_the_atom.htm
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