Aim: The aim of this experiment was to develop a technique to separate a mixture of sand‚ salt‚ iron filings‚ kerosene and water. Hypothesis: It was hypothesized that the heterogeneous mixture of salt‚ sand kerosene‚ iron fillings and water will be effectively separated. It is also predicted that there will be a decrease in each of the substances as a results of sources of error. Risk assessment: Risk | Control Measure | Glass- Fragile‚ lacerations could occur | Extra care
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Complexometric Determination of Water Hardness Abstract: Create a standardized EDTA solution for use as a titration solution to determine the hardness of water from a single random sample. Introduction: Using a calibrated EDTA solution to determine water hardness from a random sample. Essentially the Na2EDTA solution reacts one to one with the mineral content of a sample of tap water and by use of a standardized solution a ppm estimation can be obtained for the hardness of water. Current knowledge
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CHAPTER 10: COST OF CAPITAL HOMEWORK 1. The Dempere Imports Company’s EPS in 2009 was $2.82‚ and in 2004 it was $1.65. The company’s payout ratio is 30%‚ and the stock is currently valued at $41.50. Flotation costs for new equity will be 15%. Net income in 2010 is expected to be $15 million. The market-value weights of the firm’s debt and equity are 40% and 60%‚ respectively. a. Based on the five-year track record‚ what is Dempere’s EPS growth rate? What will the dividend be in 2010?
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titration. EDTA (aq) + MIn- (aq) + 2H+ (aq) → H2In- (aq) + MEDTA (aq) Procedure/Data 0.8652 g of 0.004 M disodium EDTA was dissolved in 500 mL of deionized water within a sealed plastic bottle. Na2EDTA solution was standardized using 10 mL of CaCO3‚ 30 mL of DI water‚ five drops of Eriochrome Black T indicator‚ and 3 mL of NH3/NH4Cl (aq) buffer. Na2EDTA was titrated until the Eriochrome Black T solution
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Chapter 5: Water and Seawater Review Questions (2‚ 4‚ 5‚ 6‚ 7‚ 8‚ 9‚ 10‚ 11‚ 12‚ 14‚ 16‚ 17) 2. Describe what condition exists in water molecules to make them dipolar. The bent geometry of water molecule gives a slight overall negative charge to the side of the oxygen atom and a slight overall positive charge to the side of the hydrogen atom. This slight separation of charge gives the entire molecule an electrical polarity so water molecules are dipolar. 4. How does hydrogen bonding produce
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convenience sampling‚ the surveys can be administered and collected in person (Leedy & Ormrod‚ 2012). This insures a higher response rate. A small monetary incentive of $1 per participant is offered to increase response rate as well. The
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Top 10 Global Consumer Trends For 2015 1:47pm 78 80 60 F 1:47pm 78 F 80 60 1:47pm 78 F 80 60 Not to be distributed without permission. TOP 10 GLOBAL CONSUMER TRENDS FOR 2015 Daphne Kasriel-Alexander Consumer Trends Consultant‚ UK CONNECT WITH US © EUROMONITOR INTE R N AT ION A L Consumption in 2015 is increasingly being driven by the heart: consumers are making choices defined by their positive impact on the world and community through cause-linked buying‚ the thriving “sharing economy”
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Ice Calorimeter Determination with Mg June 18th 2013 Abstract: This experiment determines the amount of energy needed to melt ice. A spontaneous increase in enthalpy produce by combining 0.2036g Mg and 5.00mL H₂SO₄‚ ice was melted and readings were taken by using an ice calorimeter. Readings were taken before during and after the reaction were completed. The data taken shows a value of -405 KJ/mol while the theoretical value was -483.7 KJ/mol. Calculating the experimental
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IRON AND STEEL INDUSTRY Submitted by Vivek Agarwal Roll No-68 | | TABLE OF CONTENTS 1. ACKNOWLEDGEMENT 3 2. ABSTRACT 7 3. INTRODUCTION
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SEX DETERMINATION IN FORENSIC ODONTOLOGY Identification of living beings and dead bodies is of great importance in Forensic science. Sex determination is one of the important steps in establishing identity. Sex identification in international sports: In 1932 Helen Stephens and Stella Walsh: Hitler’s Olympics In 1936 Stella accused Stephens of being male and so a crude physical examination including gross physical examination of external genitalia was done. In 1966 gender identification became
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