Experiment #6: Colorimetric Determination of pH Almira‚ Faerie Carleen Lucile L. Gallardo‚ Charlotte O. Group #6‚ Chemistry 18.1‚ MHEG1‚ Ma’am Arlou Angeles September 23‚ 2013 I. Abstract The acidity of the four unknown solutions were determined with the use of colorimetry using McIlvaine’s buffer solutions varying in proportion of its constituents (disodium phosphate and citric acid). These buffer solutions were subjected to the addition of corresponding pH indicators and the variation of
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Sample test: Quantitative Method for Business Research Note: This sample test is just a sample for you to see what a real exam looks like. That means that it is not necessarily same as a real exam. 1. Any measure to characterize a variable of a sample is called a) a sample b) a census c) a statistics d) a parameter 2. The score of student’s aptitude test is an example of a) a categorical nominal data b) a categorical ordinal data c) a continuous interval numerical data
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3.2.2 Quantitative Methodology Quantitative procedures involves the information arrangement strategies for self-directed surveys‚ check records and overviews that are abused to introduce factual information for an obvious and exact examination. As per Martin (2002) subjective examination is an accumulation of essential data from a colossal number of people which is proposed to arrange deciding results to a far reaching populace which in a general sense suggests that quantitative exploration is best
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Strengths and Weaknesses of Qualitative and Quantitative Research Approaches? Table of Contents 1. Introduction................................................................................................................................ 3 2 .Quantitative Research Approach................................................................................................ 3 2.1 Strengths………………………………………………………………………………4 2.2 Weaknesses……………………………………………………………………………4
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In the recent times‚ Quantitative Easing policy of the US Federal Reserve has gained a lot of attention from businesses‚ investors and stock markets the world over. This has generated curiosity in the minds of many as to what it actually is and how it affects the world economy. This article is an attempt to satisfy such curious minds. To understand quantitative easing‚ let us go through the story of recession in the US‚ its post effects‚ and how the economy got back on the path of recovery.
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INVESTIGATION #2 DETERMINATION OF THE WATER OF CRYSTALLISATION April 4‚ 2012 OBJECTIVE: Chemical compounds that contain discrete water molecules as part of their crystalline structure are called hydrates. Hydrates occur quite commonly among chemical substances‚ especially among ionic substances. More often than not‚ such compounds are either prepared in‚ or are recrystallized from‚ aqueous solutions. Hydrates exist for ionic compounds most commonly‚ but hydrates of polar and non polar covalent molecules
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Name: Name of lab partner: Date: Title: Determination of the valency of magnesium Objective: To study the quantitative relationship between the amount of reactant and products of a reaction. A known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry and the valency of magnesium. Introduction: In Chemistry‚ stoichiometry is the study of the quantitative relationship between amounts of reactants and products of a reaction
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DMT0064 INTRODUCTION TO QUANTITATIVE TECHNIQUES Exercise 1 1. What is the difference between qualitative data and quantitative data? 2. What is the difference between discrete data and continuous data? 3. If an experiment results in data are continuous in nature‚ must the data be quantitative‚ or can they be qualitative? 4. Determine whether the given values are from a discrete or continuous data set. a. In the Chapter Problem‚ it was noted that when 50 letters were sent as part
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Abstract Water “hardness” was analyzed in this experiment‚ through the determination of CaCO3 concentration. This was achieved by the titration of an unknown solution using a standardized 0.1M EDTA‚ and addition of Eriochrome Black T to the unknown‚ to indicate the endpoint of the titration. The average concentration of CaCO3 obtained was 1034 ppm‚ with a standard deviation of 2.4495. The results indicate that the unknown solution can be considered as hard water. Introduction The
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Determination of Vitamin C (Ascorbic acid) concentration in some of Commercial Products‚ by Redox Titration Mouhannad AL.-Hachamii Sadiq J. Baqir Saadon A.Aowda Fatima A. Hussein‚ Dep.of chemistry‚ college of science‚ Babylon University Muhammed K.Alasedi Ministry of Health Hilla city‚ Babylon Abstract The goal of this search is to determine the concentration of vitamin C (Ascorbic acid ) in some of a Commercial Products‚ Vegetables and Fruit Juices by Redox Titration. A redox
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