most any material. GOOD LUCK! Abstract: In this lab we determined the freezing point‚ and Kf‚ of pure 2‚4‚dichloralbenzne as well as a 2‚4‚dichloralbenzne/biphenyl solution. We used this information to determine the molar mass of an unknown (#24) by the 3rd step in the experiment which was a 2‚4‚dichloralbenzne/unknown solution. All of the above we charted the time temperature for the later calculations. I. Introduction A. Background This experiment shows how one determines the temperature-composition
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Supplier Base Reduction Supplier Base Reduction Department of Industrial Management and Logistics Division of Engineering Logistics Planning for Supplier Base Reduction - understanding Supplier Base Reduction’s role in purchasing A case study at Alfa Laval AB Authors Fabian Karlsson Sebastian Eriksson-Ritzén Supervisors Ala Pazirandeh Markus Ekendahl ii Acknowledgements This thesis completed our Master of Science in Mechanical Engineering with specialization in Logistics
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Charmed‚ the series review I didn’t get into the series until I happened to catch a little bit of it on TNT one morning. That was in the beginning when Prue was still alive. I started to watch it out of curiosity and then I got really into the show‚ as I found myself wanting to watch it every day before and after school. The three main characters in the show are Piper Halliwell‚ Phoebe Halliwell‚ Prue Halliwell (until she dies) and Paige Mathews-Halliwell (the half sister). All the sisters
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Exercise 10: Acid-Base Balance: Activity 1: Hyperventilation Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The fastest compensatory mechanism for maintaining pH homeostasis in the human body is You correctly answered: c. the chemical buffering system. 2. An increase in hydrogen ion concentration would You correctly answered: d. decrease pH. 3. The amount of carbon dioxide in the blood is measured in You correctly answered: b. mm Hg. 4. The reaction
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ACTIVITY 1.3 America’s Promise LEARNING STRATEGIES: Learning Targets Previewing‚ Marking the Text‚ Think-Pair-Share‚ SOAPSTone Before Reading 1. The Statue of Liberty has long been a welcoming figure to the millions of immigrants who have come to the United States of America. What feelings or thoughts do you think people might have when looking at the Statue of Liberty for the first time as a new arrival to this country? Source: “An ocean steamer passing the Statue of Liberty:
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titration is kept constant this will give the accurate measurements of the amount of HCl that did not react with the calcium carbonate. Apparatus Mortar and Pestle Standard Lab Balance Hot Plates 200ml beaker Measuring cylinder (10ml‚ 100ml) Pipette Burette Conical Flask Bunsen burner Any reagents used in this experiment Eggshell NaOH 1moldm3 HCl 1moldm3 Phenolphthalein Procedure 1. Each student should obtain one egg and the necessary glassware from the side bench. 2. Break the egg into
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Atheism "Atheist" redirects here. For other uses‚ see Atheist (disambiguation). Part of a series on Atheism Concepts Antitheism Atheism and religion Criticism of atheism Implicit and explicit atheism Negative and positive atheism History History of atheism New Atheism State atheism Arguments for atheism Arguments against God’s existence Argument from free will Argument from inconsistent revelations Argument from nonbelief Argument from poor design Atheist’s Wager Fate of the unlearned
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CHEM 101L GENERAL CHEMISTRY LAB FALL 2012‚ Friday 1:00 PM-3:50 PM Professor: Dr. Rostislav Bukasov Office: 7107 Office hours: Monday 5:00-6:00 PM; Tuesday 9.00-10.00 AM; Wednesday 11:00 AM–12:00 PM; Thursday 4.00-5.00 PM; Friday 10.00-11.00 AM Phone: 7-7172-706665 E-mail: rostislav.bukasov@nu.edu.kz Teaching Assistant: Zhanar Kassenova E-mail: zhanar.kassenova@nu.edu.kz Office : 8527 Office hours: Tuesday: 11.00 - 12.00 pm; Thursday: 9.00 am - 10.00 am Course Overview Chemistry
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Purpose: The purpose of this lab was to determine the freezing point of pure water‚ the experimental van’t Hoff factor for a substance and the molar mass of an unknown solution. Reagents: 25mL deionized Water ¼ to ½ inches of rock salt 25mL Sodium Nitrate (NaNO3 ) 25mL unknown solution – handle unknown solution carefully Procedure: For part 1‚ the freezing point of deionized water was determined. An ice bath was prepared by filling a 600mL beaker ¾ full of ice and covered with ¼ to
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LAB REPORT FOR EXPERIMENT #2: PURIFICATION OF ACETANILIDE BY RECRYSTALLIZATION Your name TA’s name Your Partner’s name Lab Section OBSERVATIONS: A. SELECTING A RECRYSTALLIZATION SOLVENT | |Solubility Test (cold) |Solubility Test (hot) | |Water |insoluble |soluble | |pet ether |insoluble
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