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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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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Kelsie Sanker Miss Sangster College English II February 19‚ 2013 An Apple A Day‚ Keeps The Doctor Away One teaspoon of granulated sugar equals 4 grams of sugar; a typical coke contains 39 grams of sugar which is about 9.75 teaspoons. Students need to understand that high sugar foods even though they are scrumptious are very bad for their health and can do a heap load of damage to them in the longer run. High sugar foods and sodas should not be sold in vending machines in schools in order to protect
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A NEW METHOD FOR GENERATING ALL POSITIVE AND NEGATIVE RULES A project report submitted in the partial fulfillment of the requirements For the award of the degree of BACHELOR OF TECHNOLOGY IN COMPUTER SCIENCE AND ENGINEERING Submitted by N.Vamsi Krishna Y08CS085 P.R.S.Anudeep Y08CS099 K.V.Praneeth Y08CS112 B.Vipin Y08CS124 Under the esteemed guidance of Dr.K.Srinivas‚M.Tech.Ph.D Department of Computer Science and Engineering V.R.Siddhartha Engineering College
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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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Khamdee Thanyatep MBA1 Positive and Negative Situation Everyone encounters negative situations‚ whether at home‚ work‚ in the community‚ or at school. How we deal with these situations is what determines whether we grow and become stronger‚ or are beaten by them. We all face negative situations in our life. Someone may say something bad about you‚ or something you’ve worked hard on is rejected. In situations like this it is difficult to keep a positive attitude. However we’re judged by our communications
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Effectiveness of Negative Pressure Therapy on Wounds Heather Downey ECPI University Effectiveness of Negative Pressure Therapy on Wounds Negative Pressure Therapy (NPT) is a non-invasive treatment using negative pressure to treat open wounds with the assistance of foam or gauze as the wound filler (Lee‚ 2011‚ p. 114). NPT also goes by the name Negative Pressure Wound Therapy (NPWT)‚ Topical Negative Pressure (TNP)‚ and Vacuum Assisted Closer (VAC). According to Thompson (2008)‚ NPT can be
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bath for 10 minutes. The aspirin was collected by vacuum filtration. After it dried‚ it yielded 0.93 g (30.9 % of original Panacetin). Isolation of Unknown: 71 mL of boiling H2O were poured int an Erlenmeyer flask with 0.93 g of unknown to dissolve it. After reaching room temperature‚ the flask was placed into a bucket with ice and DI H2O. The unknown was collected by vacuum filtration‚ rinsed with ice water‚ and dried to constant mass at 0.72 g. 13C NMR (100.13 MHz‚ acetone-D6): σ 15.5 (s‚ Me)
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LAB 5: Coliform bacteria in surface waters I. Introduction Many organisms‚ including humans‚ have symbiotic bacteria in their guts that aid digestion. Symbiosis is an intimate relationship between different organisms in which both the host organism‚ e.g. the human‚ and the symbiote‚ e.g. bacteria‚ benefit from each other. In this case‚ the bacterium gets a favorable environment and food source in the intestines of a human. In return‚ these bacteria improve the digestibility of food through
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Running Head: THE NEGATIVE EFFECTS OF COHABITATION The Negative Effects of Cohabitation University of Phoenix The Negative Effects of Cohabitation In today modern society with such high rate of divorce‚ many people are turning to cohabitation. With the 2000 census reporting 5.5 million cohabiting couples ‚ up 3.2 million from 1990 ( Simmons & O’Connell‚ 2003)‚ it is clear that cohabitation is a trend that needs to be further examined. Cohabitation is viewed as an attractive alternative or
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