Materials - 1 matchbox - 1 candle - 1 yellow colored balloon - 1 blue colored balloon - Half a cup of water Procedure: 1. For this experiment‚ the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount of water in the balloon.
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Experiment # 4: Dissociation Constant Weak Acids Introduction: The dissociation constants of weak monoprotic acids were determined with the aid of a buffer and pH meter. Experiment: This experiment was performed according to the procedures as provided in the Chemistry 111B laboratory manual: Po‚ Henry and Senozan‚ N. "General Chemistry Experiments Chemistry 111B"‚ 8th Ed.‚ 2004 Hayden-McNeil Publishing‚ pp 80-88. To determine the dissociation constants of weak monoprotic acids (HX and HY)‚ a buffer
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Introduction The purpose of this experiment is to practice common organic laboratory techniques inside the lab to get one oriented to the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form‚ consisting of benzoic acid‚ methyl orange‚ a common acid/base indicator‚ and cellulose‚ a natural polymer of glucose (Huston‚ and Liu 17-24). The technique that is used to perform this separation is called extraction
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HIV/Aids Epidemic HIV/AIDs is a huge epidemic still plaguing society today. The lack of knowledge and technical advances has caused an increasing number of cases. It has made its way around the world since the 1940s‚ causing countries to join together in the fight against AIDs. With all the campaigning that has been done the numbers of cases continue to rise. Countries have separated the disease into three patterns to make it easier to distinguish the effects that AIDs has on different regions
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Audit planning consists of eight steps‚ illustrated in Table 8-1: 1. Accept the client and perform initial audit planning 2. Understand the client’s business and industry 3. Assess client business risk 4. Perform preliminary analytical procedures 5. Set materiality and assess acceptable audit risk and inherent risk 6. Understand internal control and assess control risk 7. Gather information to assess fraud risks 8. Develop overall audit plan and program 8-2 Make Client Acceptance Decisions and Perform
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promotion of micro-enterprises and employment generation. The target groups of the programme are Women‚ Socially Excluded such as Dalits‚ Indigenous Nationalities (Adivashi-Janajatis)‚ Religious Minorities‚ Unemployed Youths‚ People Living with HIV and AIDS (PLHA)‚ Injecting Drug Users (IDUs) and Ex-Combatants Discharged from Maoist Cantonments. MEDEP has been working in several commodity sub sectors based on market demand‚ local resource potential‚ and needs and demands of target groups. The program
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Ergogenic aids are substances or devices that enhance energy production‚ for use for recovery and provide athletes with a competitive advantage. Numerous ergogenic aids claim to enhance sports performance and are used by amateur and professional athletes. Approximately 50 percent of the general population has reported taking some form of dietary supplements‚ while 76 to 100 percent of athletes in some sports are reported to use them. Physicians can evaluate these products by examining four factors
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Unit 21: Applied sport and exercise physiology Assignment 3 – Ergogenic Aids Ergogenetic aids are used to directly influence the physiological capacity of a particular body system thereby improving performance they also are used to remove psychological constraints which impact performance and increase the speed of recovery from training and competition. Every athlete wanting to improve their performance whatever they are trying to achieve wants to do it quickly and get good results. For example
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Abstract In this experiment paper chromatography was used in order to identify two unknown amino acids using eight known amino ones. The two unknown ones were identified by comparing the distance they travelled up the chromatography paper and their Rf values to the corresponding values of the other eight known amino acids. The unknown amino acids identified were Glycine and Methionine. Introduction Proteins in cells are important in many ways. There are different types of proteins such as
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dissolve in aqueous solvents. This phenomenon is observed because of the intermolecular forces between solvent and solute molecules. For example‚ in aqueous solvents‚ the polar solute can interact with the solvent via hydrogen bonding‚ electrostatic forces‚ ion dipole forces‚ dipole-dipole forces and London forces. All of these can help a polar solute dissolve in an aqueous solvent. Polar molecules can be involved in these interactions because they have a partial charge. This partial charge is brought
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