Summer Assignment - Essay The Autobiography of an Ex-Colored Man Although the Civil War left slaves under the impression that they had won their freedom‚ blacks were still constantly the target of discrimination and it took many years for them to finally gain equality. In James Weldon Johnson ’s The Autobiography of an Ex-Colored Man‚ a story is told through the eyes of a man in this troubling time‚ who learns in his early childhood that he is black‚ but with the ability to pass as a white man
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Melting pointe determination #01 Introduction: Objective To learn how to obtain an accurate melting point using a MELTING POINT APPARATUS‚ then use them to draw eutectic curve and determine the eutectic point. Melting point of a solid is the temperature at which the solid and its liquid form are in equilibrium‚ i.e.‚ molecules move back and forth between the two states at the same rate‚ so both phases remain present. If the temperature of a solid is measured carefully as the solid is heated
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Determination of an Equilibrium Constant Abstract: In this experiment‚ two reactions were run to determine the molar absorptivity and the equilibrium constant of FeSCN2+. The main principles used in this lab are equilibrium‚ LeChatlier’s Principle‚ Beer’s Law and Spectrocopy. The first reaction was run to completion using LeChatier’s Principle and the second reaction was run to equilibrium. A spectrophotometer was used to measure absorbances. Using a graph of absorbance versus concentration
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Lab 7: Determination of Water Hardness Using a Titrator Name: Kyndal Petrie Lab Partners: None Date of Experiment: July 19‚ 2013 Location: My house Course Number: Che112 Abstract: This experiment was to determine the hardness of the local water supply. I determined that from the 1mg of EDTA used to turn the mixture blue‚ that the water from my tap is moderately soft. Experiment and Observation: In this experiment I developed a familiarity with the concept
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1. What is the molecular weight of Na+? 22.99 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50‚ 100 and 200 4. Which materials diffused from the left beaker to the right beaker Urea‚ NaCl and glucose diffused 5. Which did not? Why? Albumin‚ because it is too large to diffuse Activity 2: Simulating Dialysis 1. What happens to the urea concentration in the left beaker (the patient)? Its concentration gradient
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Determination of rate of photosynthesis INTRODUCTION Photosynthesis is the major process by which light from the sun is captured by plants‚ algae and some bacteria to produce energy. It is a process in which light energy is converted into chemical energy which is then stored in sugars. Photosynthesis occurs in two stages‚ light-dependant reactions and light-independent reactions. In light-dependent reactions the chlorophyll traps light energy which is then used to excite electrons and split water
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The Determination of Keq for FeSCN2+ Joy Muthami February 12 2014 Introduction: The purpose of this lab was to calculate the equilibrium constant for the reaction of iron (III) ions with thiocyanate ions. The materials were first acquired then with the groups in the class each team was given a test solution to create and acquire information from then all the information was put together in order to save time. Specifically the group created test solutions #8‚ #9‚ and #10. Once the solutions were
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Fed-Ex Case Study In 1971 FedEx Express developed the modern air/ground express industry; in 1998 the corporation was created as FDX Corp. and became FedEx Corp. in January of 2000. 1. History and Background of the company 2. Identifying the success in Management 3. Analysis and Evaluation 4. Action Plan and Recommendations 5. Fed-Ex Today History Throughout its history‚ FedEx has been a leader in the transportation and information industry. In 1965‚ Yale
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Case Study #3 FedEx 1. What is the FedEx philosophy toward quality? “Customer satisfaction begins with employee satisfaction. Putting people first in every action‚ every planning decision‚ every business decision requires a tremendous commitment from every manager and employees in the company.” James L. Barksdale‚ Chief Operating Officer “He even stated that his employees have been acting on their own to keep customers satisfied even before empowerment became a
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istWhy Social Problems Exist? Author By: Dr. Mohammad Shatar Sabran-153 Vol. 25 No. 2 Dec 2003 Introduction It is undeniable that the world is currently facing a multitude of problems. All levels of society concurred with this scenario. Regardless whether they belong to the upper crust or lower level or whether they are doctors‚ lawyers‚ businessmen‚ clerks‚ and gardeners or of other vocations‚ all are in agreement that the world today is not free from all kind of social problems. There are
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