Courtney Cubine 6/19/13 June 20‚ 2013 Separation of a Mixture of Solids Purpose: The purpose of this experiment was to help the student learn how to separate a mixture of multiple different solids and determine the percentage of each component of the mixture. Procedure: I started off by removing the iron using the magnet‚ and then I weighed all of the iron I obtained from the mixture in a container I already knew the weight of and calculated the net weight of the iron. Next
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Lab 8: Isopentyl Acetate CHM 2211L October 22‚ 2014 Abstract Many esters are naturally occurring compounds that are responsible for the fragrance of fruits and flowers. Isopentyl Acetate is the compound responsible for the smell of bananas. However‚ when Isopentyl acetate is treated with H3O+ it will hydrolyze back into the carboxylic acid‚ which will change the fragrance. In this experiment 3.11g of Isopentyl Acetate were produced with a 51.92 percent yield. Introduction Esters are carboxylic
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Introduction The XYZ Construction Inc. located in Denver‚ Colorado is planning to expand operations in Asia. In order to be able to do expansion in Asia the XYZ Construction Inc. needs to find out more about the ethical and social issues that may affect the business‚ project managers and engineers. Moreover‚ the XYZ Construction Inc. may need to train staff or hire a staff that would fit the culture. Ethical and social issues within the global market of Asia South Asia is one of the most densely
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Lab 3.1 Step 1 Variable Name Problem (Yes or No) If Yes‚ What’s wrong? Declare Real creditsTaken No Declare Int creditsLeft Yes Declare as Double‚ Int can’t account for half credits Declare Real studentName Yes Needs to be String‚ not Real. Constant Real creditsneeded = 90 No Step 2 The calculation is backwards. Should be Set creditsLeft = creditsNeeded – creditsTaken. Step 3 The student’s name is Nolan Owens Step 4 The Network Systems Administration degree is awarded after 90 credits and Nolan
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Lab 3: Bromination of Acetanilide CHEM 2110 Hassan Alsaleh 0525970 Due date :11/02/2015 Q1: To find the limiting reagent we need to find the number of moles of acetanilide‚ and the number of moles of Bromine. Mass of Acetanilide used = 0.67g Molar mass of Acetanilide = 135.16g/mol[1] Number of moles of Acetanilide = (0.67g) / (135.16g/mol) = 0‚005 mols Volume of Bromine = 0.25ml Density of Bromine = 3.103 g/ml[2] Mass of Bromine = (0.25ml) X (3.103g/ml) = 0.78g Molar mass of Bromine
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Name: ashley wible Exercise 11: Blood Analysis: Activity 2: Erythrocyte Sedimentation Rate Lab Report Pre-lab Quiz Results You scored 33% by answering 1 out of 3 questions correctly. 1. The erythrocyte sedimentation rate (ESR) Your answer : a. measures the settling of red blood cells (RBCs) in a sample of whole blood during one minute. Correct answer: c. is increased whenever fibrinogen and immunoglobulins cause the RBCs to clump together‚ stack up‚ and form a column. 2. The ESR cannot be
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Experiment 8 “Lipids” and the purpose of the lab is to become familiar with the properties and reactions of certain lipids called fats or oil. For this lab‚ students are testing the properties and reactions of lipids and soap will be prepared and its properties will be tested. To begin the experiment‚ place 5 mls of water‚ ethyl alcohol‚ chloroform‚ and toluene in to four clean test tubes and add 1 drops of cottonseed oil to each test tube. Shake it and record your observation. To do part B‚ in three
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PHYS 211 Physics for Science and Engineering Experiment 1: Projectile Motion Physics Lab Report 3 OBJECTIVE The objective of the experiment is to measure the speed at which a projectile leaves a spring gun and to predict the landing point when the projectile is fired at a nonzero angle of elevation. EQUIPMENT Spring gun Metal ball Protractor Meter stick Ruler Whiteboard markers THEORY Projectile motion is an example of motion with a constant acceleration. In this experiment
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seconds‚ pH = 7.4 3. At 60 seconds‚ pH = 7.4 4. Did the pH level of the blood change at all during normal breathing? If so‚ how? The pH did not change during the normal breathing. 5. Was the pH level always within the “normal” range for the human body? Yes it was. 6. Did the PCO2 level change during the course of normal breathing? If so‚ how? No it did not change either. Activity 2a: Hyperventilation – Run 1 1. At 20 seconds‚ pH = 7.48 2. At 40 seconds‚ pH = 7.52 3. At 60 seconds‚ pH
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Unit 8 Lab 1 1. Public Keys and Public Certificates can be stored in the Central Repository. It is not the same as the Public Key Infrastructure‚ but it is not the same. 2. Decryption key 3. Authentication Header is used to prove the identity of the sender and ensure the data is not tampered with. A Encapsulated Security Payload provides authentication and encryption and encrypts the IP packets and ensures their integrity. 4. 1. Create Enrollment Object 2. Set Enrollment Parameters 3. Create
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