days to repent (Jonah 3:4)‚ and most importantly‚ prior to undertaking his ministry‚ Jesus spent forty days in wilderness praying and fasting (Matthew 4:2). -not including Sundays Sundays are celebratory so not included for “mourning” -Ash Wed-Holy Saturday Ash Wednesday cross on forehead. Day of Fast and abstinence (18-60) Fast; eat one meal‚ and snacks Abstinence; (14+) no meat but eggs are allowed (Daniel 10:1- 3) By giving up good things and denying them to ourselves we encourage
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learn some technique in volumetric analysis: Redox titration. • To review the stoichiometry of an oxidation- reduction reaction. • To determine the concentration of an unknown sodium oxalate (Na2C2O4) solution by titrating it against standardized potassium permanganate solution (KMnO4). • To determine the percent by mass of Fe(II) in the form of ferrous ammonium sulfate Fe(NH4)2(SO4)2.6H2O in a mixture by redox titration. B. Theory: (electron transfer reactions)
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Experiment TITRATION OF A COLA PRODUCT The CCLI Initiative Computers in Chemistry Laboratory Instruction LEARNING OBJECTIVES The objective of this laboratory experiment is to determine the molar concentration of phosphoric acid in a cola product. BACKGROUND Titration is an analytical technique used to find the concentration of a known volume of unknown substance by adding a known concentration of a known substance. As the unknown and known substance react‚ we look for a "telltale" indication
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by Redox Titration with Iodine Vitamin C (ascorbic acid) is an antioxidant that is essential for human nutrition. Vitamin C deficiency can lead to a disease called scurvy‚ which is characterized by abnormalities in the bones and teeth. Many fruits and vegetables contain vitamin C‚ but cooking destroys the vitamin‚ so raw citrus fruits and their juices are the main source of ascorbic acid for most people. One way to determine the amount of vitamin C in food is to use a redox titration. The redox
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Introduction A titration is a technique used to find the solution of known concentration in the concentration of another unknown solution. Typically‚ the known solution is added from a known quantity of unknown solution until the reaction is complete. Titrations are also often used to determine the pH of a solution. This is important because without knowing how acid or basic a solution is people could hurt themselves and others but mixing chemicals together that are lethal. The objective of the
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Quantitative and Qualitative Research: Problem‚ Basis‚ Procedure Terri Morris Quantitative and Qualitative Research: Problem‚ Basis‚ Procedure Quantitative Research Study Research Problem The researchable problem is that novice special education teachers are overwhelmed by the lack of mental‚ physical‚ and technical support from their general education colleagues. In addition‚ these teachers are feeling isolated due to the lack of time to plan‚ learn‚ and communicate effectively with their
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UNIVERSITY OF LA VERNE COLLEGE OF BUSINESS AND PUBLIC MANAGEMENT BUS 500C QUANTITATIVE & STATISTICAL ANALYSIS COMPREHENSIVE FINAL EXAMINATION 1. The personnel director for a business organization has identified 10 individuals as qualified candidates for 3 managerial training positions her firms seeks to fill. Use the appropriate rule to give the number of different combinations of the 10 individuals who could be chosen for the 3 positions. As discussed in class we would use the combination
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein Introduction
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BACHELOR OF COMMERCE (HONOURS) DEGREE QUANTITATIVE ANALYSIS FOR BUSINESS II April/May 2001 Final Examination Instructions to Candidates 1. 2. 3. 4. 5. Answer all questions in Section A Choose and answer three (3) out of five (5) questions in Section B. Answer both questions in Section C Graph Paper will be provided You may use a Non-Programmable Scientific Calculator CIN 1207 Duration: 3 Hours SECTION A ANSWER ALL QUESTIONS Question 1 (a) Assume that the sales made by a used car salesman occur
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Hudson Miller “’There Must Be Someway Out of Here’‚ Said the Joker to the Thief” Existence is a curious thing. One minute you can be happily floating in oblivion‚ the next you are plucked from the comforting darkness and blinded by all the gloriousness of consciousness. Well‚ that’s how it goes for most people anyway. Our hero was not brought into this world because of the love of a man and a woman. Our hero was brought into this world because of the hatred a man had for himself. When you first
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