net increase in equity during this time period. Income Statement A review of Abbott’s income statements for 2006 and 2010 shows a significant improvement in net income as a percentage of revenues. The firm was able to reduce its cost of sales by 2% during the time period‚ but this savings was offset by 1% increases in both SG&A and R&D expenses. The biggest contributing factor to Abbott’s bottom line improvement comes from the reduction of unusual expenses. This expense
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Joe Schmoe Period 3 March 8‚ 2013 Lab Report: Empirical Formula of Zinc Chloride (ZnCl) * Purpose The purpose of this experiment was to learn how to determine the empirical formula. Empirical means “based on experimental evidence.” * Experimental Design The reaction that occurred was the reaction of the elements Zinc (Zn) and Chloride (Cl) by mixing a piece(s) of Zinc and 50mL of Hydrochloric Acid (HCl). The amount of Zinc was determined to be between 1.00g and 1.25g. As the reaction
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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Abstract: For the first part of this lab we refluxed different Carboxylic acids and alcohols in the presence of a acid catalyst in order to form Esters by Fischer Esterification. These Esters had different pleasant smells that we then evaluated. In the second part of the experiment‚ we broke the ester bonds of a triglyceride in order to form glycerol and carboxylate salts. This process is known as Saponification because it produces amphiphilic molecules that allow soap to remove dirt from the surface
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SC131 Human Anatomy and Physiology II Unit 2 Lab Worksheet: Heart‚ Pulmonary and Coronary Circulations Student Name: Directions: Go to Real Anatomy and select Cardiovascular. Use the dissection man to f ind the appropriate images to use as references. You can use your mouse to roll over the images and click on the highlighted structures. You can use the Related Images section to find additional images. If you need help navigating Real Anatomy‚ click on Take a Tour or
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CJ Tavner 2/04/2013 Chemistry Lab: Equilibrium and LeChatelier’s Princinple Objective: Put stresses on the systems; observe how the equilibrium’s systems react to a stress. Materials and Procedures: A. Materials 1. NaCl(s) 2. KSCN‚ 0.002M 3. Bromythymol blue indicator solution 4. AgNO3‚ 0.1 5. CoCL2 x 6H2O(s) 6. HCl‚ 12M 7. HCL‚ 0.1M 8. NaOH‚ 0.1M 9. Fe(NO3)3‚ 0.2M 10. C2H5OH(l) 11. Na2HPO4(s) 12.
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Ammonia and Hydrochloric Acid Lab Chemistry 1 Abstract The straw should be cut shorter to 8 cm in order to make the solid ring appear in the center of the straw. We achieved our goal‚ cutting the straw caused the gases to not have to go as far‚ and meet in the middle. Background The particles in a gas are very loose and tend to move around a lot very quickly. The particles in a solid are very compact and vibrate but don’t really move very much. The particles in a liquid however are more
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Name: Andre Davis Lab Partner: Ariana camper Title: Lab 21 Qualitative Analysis Date: April 11‚ 2017 Objective: The goal for this lab was to take the unknown solution and determine its ions. Experiment Procedure Part 1 Group 1 10 drops of an unknown solution into a test tube. add four drops of 6M HCl‚ then stir it and place in centrifuge for 30seconds to a minute. Test for completeness of precipitation after testing for precipitation add one drop no more than one drop of 6 M HCl to the supernate
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Conclusion: The purpose of this lab was to synthesize and purify aspirin. The theoretical yield was calculated to 3.766g. The actual yield of pure aspirin was 2.863g with a yield of 76%. The percent yield indicates that our synthesis was a success but the yield is low and indicates that some of the aspirin was lost during synthesis. Some reasons for loss can result from human error such as loosing product from sticking on the spatula and the Buchner funnel and several weighings. Also‚ when transferring
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DESIGN LAB Factors Affecting the Solubility of a Solid in a Liquid In this experiment‚ my goal is to determine the affect of temperature in the solubility of a solid in a liquid. Research Question: How does the change in the temperature affects the solubility of a solid in a liquid? Independent variables: Temperature of the Solution Dependent variables: The solubility of the solid substance Controlled Variables: * The pressure of the room. * The mass of zinc chloride reacted
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