TECH0701: Measuring the Melting Points of Compounds and Mixtures Introduction This exercise dealt with the melting points of pure mandelic acid and benzoic acid. The eutectic temperature and composition of mandelic and benzoic acid mixtures were determined. And finally‚ an unknown was identified by its mixtures and melting point. The melting point of a compound is used by organic chemists not only to identify the compound‚ but also to establish its purity. To determine the melting point two
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Purpose: To use indicators to test for the presence of organic compounds in certain substances. Hypothesis: Honey will contain sugars‚ egg white contains proteins‚ corn oil contains lipids‚ oats contains starches and proteins‚ gelatin contains sugars and proteins‚ potatoes contain starch‚ and apple juice contains lipids and sugars. Materials: 9 test tubes Test tube rack Test tube holder Grease pencil Hot plate 20 ml honey solution 20 ml egg white and water mixture 20
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Goal: to post about 10 chemicals‚ what they do‚ and how they are used Total Word Count In This Document: 1531 Title: ?10 Chemicals? Menthol Menthol is a synthetically-made organic compound extracted from natural plants like corn mint‚ peppermint‚ and other mint oils. It is a waxy and crystalline substance that is either clear or white in color. Due to its local anesthetic and counter-irritant qualities‚ it is widely used for a variety of purposes like soothing minor throat irritations‚ such as
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Way of the Bow 2008 Paulo Coelho’s website address is www.paulocoelho.com Paulo Coelho’s blog address is www.paulocoelhoblog.com Copyright © Paulo Coelho 2005 The right of Paulo Coelho to be identified as the moral rights author of this work has been asserted by him in accordance with the Copyright Amendment (Moral Rights) Act 2000 (Cth). ISBN : 978-0-557-01007-3 Published by Lulu.com A prayer without a deed is an arrow without a bow-string. A deed without a prayer is a bow-string without
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Here’s a good example from engineering. An aerospace engineer might want to graph the lift of a wing versus the size of the wing‚ and he wants to show everything from an insect wing all the way up to a jumbo jet. A fly’s wing is maybe 0.1 inch long‚ and a jumbo jet wing might be 1000 inches long (about 80 ft). It would be pretty tough to put more than one insect on that graph - if you scale the wing length axis to fit on a sheet of paper‚ all the points for insect wings would be jammed up against
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EFFECTS OF VOLATILE ORGANIC COMPOUNDS (10244818) Volatile organic compounds (VOCs) are organic chemical compounds that have high enough vapor pressures under normal conditions to significantly vaporize and enter the atmosphere. According to EPA ’s Terms of the Environment‚ a volatile organic compound is "any organic compound that participates in atmospheric photochemical reactions except those designated by EPA as having negligible photochemical reactivity." VOC can also stand for the term “volatile
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Identification and Recreation of Unknown White Compound #643p November 13‚ 2012 INTRODUCTION: The identity of the unknown solid white compound is determined and verified through a series of tests which uncover physical and chemical properties necessary for identification. A new sample of the same compound is then created to further prove the accuracy of the identification. The compound must be identified in order to be used. For example‚ KCl is used in medicine‚ scientific applications‚ and
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The Effects of Secondary Plant Compounds on Lumbriculus Variegatus Heart Rate Introduction Blackworms (Lumbriculus variegatus) were used in this experiment to study the effects of secondary plant compounds‚ chemical compounds produced by plants that are not part of the general metabolism‚ on pulse rate. Secondary plant compounds act as defense mechanisms which reduce or eliminate consumption of some plant species or even attract predators. These compounds are not essential to the plant but often
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UNIVERSITY MALAYSIA PAHANG FACULTY OF MECHANICAL ENGINEERING PROJECT WORK REPORT SUBJECT : COMPUTER AIDED DESIGN CODE : BMM2613 LECTURER : MOHD AZRUL HISHAM BIN MOHD ADIB AZRUL@UMP.EDU.MY SESSION/SEMESTER : 2012/2013 SEMESTER 1 GROUPNAME : GROUP 3 ’THE EXPENDABLES ’ PROJECT SUBMISSION DATE : (WEEK 13) REPORT
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Agricultural Invention: compound bow‚ riding saddle‚ and the cotton gin Agriculture has many things to do with inventions. Now you might think that inventions only consist of science and technology. Even though this is true‚ science and technology are involved in agriculture too‚ but the invention themselves is related to agriculture by its purpose or how it is used and by whom. For example‚ the compound bow. It is used for hunting and to bring in a “harvest” of game for food. That is agriculture
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