IB CHEMISTRY Stoichiometry Lab Data Collection and Processing Item | Mass | Small beaker (100 mL) | 47.0 grams | Large beaker (150 mL) | 82.4 grams | Mass of filter paper | 0.50 grams | Mass of coffee filter | 1.00 gram | 150mL beaker + 20mL water + lead nitrate solution | 96.1 grams | 100mL beaker + 20mL water + sodium carbonate solution | 64.2 grams | Watch glass | 32.2 grams | Precipitate + filter paper + coffee filter | 2.20 grams | Precipitate + 150mL + coffee filter
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Copper-Iron Stoichiometry Lab Report 10/3/12 Abstract: The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate‚ CuSO4‚ mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was
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Rodney L. Bennett Jr ISSC362 Week 1 Lab #2: Implement Hashing and Encryption for Secure Communications Instructor Name: _Adam Meyer_ Lab Assessment Questions 1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified. The hash file is changed when the data is modified because the information within the file has changed and it is considered a new/different file. 2.
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Victoria Wang‚ and Grace Xiong Mrs. Rhonda Smith Honors Chemistry Period 4 13 May 2012 Redox Reactions Lab Report We wished to investigate the oxidation number of a metal that would form aqueous ions when reacted with an aqueous nitrate salt. For this purpose‚ we chose to investigate the reaction of solid copper metal‚ in the form of a wire‚ with aqueous silver nitrate. Before we began the lab‚ we hypothesized that when silver nitrate‚ AgNO3‚ reacts with copper‚ Cu‚ the oxidation number of silver
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The progress of the reaction was monitored in my case using two TLC plate. It first started off with the spotting of Standard benzoin and benzil which were provided in the lab and followed by the addition of the reaction mixture at once it starts changing colour/boiling‚ then at 10 and 20 mins into the reflux. Once all the necessary steps were spotted‚ the TLC plate was placed in in a beaker containing CH₂Cl₂(methylene chloride)‚ which was used as the developing solvent in this experiment. To check
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1.3 Communication Basics learning objectives Describe how the communication principles and misconceptions in Chapter 1 are evident in a specific situation. Assess the needs (physical‚ identity‚ social‚ and practical) that communicators are attempting to satisfy in a given situation or relationship. Apply the transactional communication model to a specific situation. Instructions Use the case below and the discussion questions that follow to discuss the variety of communication issues involved
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PART III LECTURE NOTES CHAPTER 1 THE NATURE OF STRATEGIC MANAGEMENT CHAPTER OUTLINE | |What is Strategic Management? | | |Key Terms in Strategic Management | | |The Strategic-Management Model
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Psychodynamic Answer Key: D Question 2 of 10 0.0/ 2.0 Points Researchers are studying the effects of nicotine on driving. The participants are divided into two groups. One group is provided with nicotine cigarettes and the other with fake cigarettes that taste and smell like real cigarettes but do not contain nicotine. The fake cigarettes are an example of a(n) A. Dependent variable B. Placebo C. Random assignment D. Experimental group Answer Key: B Question 3 of 10
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Basic Laboratory Techniques Hari D. Mandal‚ PhD. Objectives 1. To use common laboratory apparatus in measuring mass‚ length‚ volume‚ temperature‚ and density 2. To compute the accuracy and the precision of a set of scientific measurements 3. To apply the concept of significant figures in reporting correctly scientific measurements Materials and Equipment Ruler‚ meter stick‚ 10 mL graduated cylinder‚ 50 mL graduated cylinder‚ small and large test tube‚ 50 mL and 150 mL beakers
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Amsco AP U.S. History Test Preparation Book Student Self Test Answer Keys 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CHAPTER ONE Multiple Choice Questions C A B D E C C E C B 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CHAPTER THREE Multiple Choice Questions C E A B D E A D C D 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CHAPTER FIVE Multiple Choice Questions E A C C D A A A D C 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CHAPTER TWO Multiple Choice Questions
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