measure the amount of light absorbed by different concentrations of salicylic acid‚ compare those concentrations to our unknown sample and to use the data collected to compile a graph showing the levels of absorbance of the different concentrations. Methods and materials: In this lab we used a spectrophotometer‚ a test tube filled with water to be used as a blank‚ six test tubes with different concentrations of salicylic acid ranging from 0 mg/dL to 5 mg/dL and one test tube with an unknown concentration
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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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Spectrophotometric determination of Ascorbic acid Concentration in an Unknown Solution Introduction: The naturally occurring organic compound with antioxidant properties is Ascorbic acid shortly referred as (AA). Normally the color of Ascorbic acid is white‚ but in some cases of impure samples it appears yellow in color. Ascorbic acid is solid in state. In water it dissolves well to give mildly acidic solutions. Ascorbic acid is one form ("vitamer") of vitamin C [1]. So‚ Ascorbic Acid (AA)
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Qualitative and quantitative research are two types of research‚ each type is presented in a different way and depends on different gathered material. Qualitative research is the collection of information about things and objects. For instance interviews‚ pictures and items would be items collected during qualitative research. Quantitative research involves the collection and analysis of numerical information that has been researched and collected. This type of research is best at the onset of a
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Theo Victor Cavite Chem 28.1 Melanie Bucsit-Carpio September 14‚ 2012 Spectrophotometric Determination of Iron in Aqueous Solutions as a Complex of 1‚10-Phenanthroline Introduction From the previous classical method of concentration determination of an unknown sample‚ this experiment now deals with the instrumental one. Unknown concentrations of iron in solutions were determined by measuring their corresponding absorbances through spectrophotometry. A spectrophotometer measures the amount
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of personal preferences‚ social beliefs‚ attitudes‚ opinions‚ behavior patterns‚ group practices‚ habits and other kinds of data. The increasing use of schedules and questionnaires is probably due to increased emphasis by social scientists on quantitative measure¬ment of uniformly accumulated data. A questionnaire is a tool for data collection. It consists of a number of questions printed or typed in a definite order on a form or a set of forms. It is administered to a respondent either person¬ally
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Title: Quantitative analysis of vitamin C contained in ribena Aim: to determine the amount of Vitamin C in a sample of ribena Materials: * Vitamin C (ascorbic acid‚ C6H8O6) * 4% potassium iodide (KI) * 1M acetic acid (CH3COOH) * N-bromosuccinimide (NBS‚ C4H4BrNO2) Apparatus: * Conical flask * 100 ml volumetric flask * Weighing bottle * Analytical weight balance * Spatula * Funnel Results: Item: | Mass in grams | Mass of weighing bottle with ascorbic
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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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Lancaster University | MKTG210 assignment | Quantitative research analysis of LIDL and Kelloggs breakfast cereal products | YIN SHIHAO 32979029 LU 2013/1/13 | CONTENT PAGE Executive Summary p2 Introduction
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Reviewer for MANSCIE 1. Introduction to Quantitative Analysis Approach Quantitative Analysis involves the use of mathematical equations or relationships in analyzing a particular problem. Steps in Quantitative Analysis Approach 1. Define the problem 2. Develop a model 3. Acquire input data 4. Develop a solution 5. Test the solution 6. Analyze the results 7. Implement the results 2. Decision Theory Six steps in decision making 1. Define the problem 2. List possible alternatives 3. Identify possible
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