solution was either cloudy or had small amounts of solid unknown‚ unable to dissolved‚ at the bottom of the beaker. The solubility was then put into terms of moles per liter. Enthalpy change is the amount of heat that is released or absorbed in a chemical reaction at constant pressure. For enthalpy change to be calculated‚ 30 mL of deionized water was measured out and put in a coffee cup calorimeter. The initial temperature of the water was record. 1 g of the unknown was measured out. Fairly quickly
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entrepreneurship at the Dow Chemical Company Dow Chemical Company Description Dow Chemical is a multi-national chemical manufacturing company‚ specifically serving various consumer markets with innovative chemicals and plastics products. With net profit margins dropping over a period of time‚ the firm had prioritized growth initiatives in the early 2000s. The emergence of the internet had empowered start-ups to disrupt the chemical manufacturing industry
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using physical and chemical properties. Physical properties are characteristics of a substance. Two types of physical properties are quantitative and qualitative. Quantitative is a property that has an amount or can be measured such as hardness‚ solubility‚ and viscosity. Qualitative is a physical description of matter such as color‚ clarity‚ and state. Chemical properties are characteristics of a substance which allows it to behave in a specific manner. A few types of chemical properties are combustibility
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Running head: CHEMICAL DEPENDENCY PAPER Chemical Dependency Paper Linda D. Miles University of Phoenix Child Therapy MFFC/536 Robert Skaff October 01‚ 2008 Chemical Dependency Paper Chemical Dependency Paper This paper will discuss Chemical Dependency or Substance Dependency and Substance Abuse in Adolescents; specifically the development‚ progression and biopsychosocial of dependency and abuse in the adolescent population. The definition of epidemiology and
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I am pleased to share my concerns‚ analysis and recommendation about the Merseyside Project with you. Your DCF analysis is excellent and helpful. However‚ I have to make some changes to it. The memo will be divided into 6 parts. Suggestions for Merseyside project: P1 What should change in the DCF analysis and why: P1-P3 Other important issues: P3-P4 Evaluation of each investment Criteria: P4-P5 Ultimate recommendation and forward looking: P5-P6 Revised DCF analysis: Appendix
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Chemical Castration LaDarius D. Abraham Southern University A&M College Sex offenders have been a serious problem for our legal system at all levels‚ not to mention those who have been their victims. Sadly‚ many of those assaults are perpetrated by people who have already been through the correctional system only to victimize again. Sex offenders‚ as a class of criminals‚ are nine times more likely to repeat their crimes (Oakes 99). This presents a problem for the public‚ as potential victims
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Physical and Chemical Properties Purpose: The Physical and Chemical Properties lab provides the opportunity to investigate the physical and chemical properties of pure chemical substances and analyze the experiment results. Procedure: In the beginning of the experiment‚ I filled two 24-well plates half way with the given chemicals and sucked up these chemicals into their labeled pipets for later use. Following this‚ I performed a number of steps on each of the four test tubes and recorded observations
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Department of Chemistry Physical and Chemical Properties Submitted by Date Submitted: February 2‚ 2014 Date Performed: January 31‚ 2014 Lab Section: Chem-180 Course Instructor: Professor Spenser Purpose The purpose of this lab experiment is to observe physical and chemical properties of substances which
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course is for science and science-related majors. Fundamental concepts of chemistry are presented including measurement and the metric system‚ the history of chemistry‚ the mole concept‚ chemical reactions and stoichiometry‚ energy and chemical reactions‚ states and properties of matter‚ the periodic table‚ chemical bonding‚ atomic and molecular structure‚ gas laws‚ and concentrations of solutions. (3 Lec.‚ 3 Lab.) Coordinating Board Academic Approval Number 4005015203 Textbooks and Other Course
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DIFFDiffusion of Chemicals * Diffusion-is the process whereby particles of liquids‚ gases‚ or solids intermingle as the result of their spontaneous movement caused by thermal agitation and in dissolved substances move from a region of higher to one of lower concentration. The rate of diffusion depends on the size of the surface area to the volume in the cell. The higher the surface area of cells in relation to their volume‚ the quicker diffusion takes place. Experiment on Diffusion Aim: to
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