drops of sodium hypochlorite necessary to make a diluted food dye change to colorless in less than three minutes helps calculate the absorbance which can then be analyzed to find the pseudo rate constant and eventually leading to the rate constant and the rate law. The results show that the m and n are both 1st order which makes the overall order of the blue dye 2nd order. Results: In this experiment‚ rate laws and graphs help calculate the oxidation of food dyes by sodium hypochlorite. During the
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Titration Analysis of a Commercial Bleach A. Purpose ! ! ! To review oxidation-reduction reactions and their stoichiometry. To learn the concept and technique of redox titration. To determine the percent (m/v) of an active ingredient‚ sodium hypochlorite (NaOCl)‚ in a commercial bleaching agent. B. Theoretical Background Whereas acid-base reactions involve the transfer of a proton‚ oxidation-reduction or redox reactions involve the transfer of electrons from one substance to another‚ resulting
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1. GENERAL INTRODUCTION The main aim of the organizational study is to acquire the knowledge regarding the functional as well as the management aspects of an organization It offers a unique opportunity to students to have hands on experience with industry while still in college. These are major aids in seeking employment after graduation. It exposes students to industry environment and work culture making it easier for them to transition from students to professionals. It gives a chance for the student
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Unit 1‚ Activity 2‚ Specific Assessment Rubric Chemistry Blackline Masters‚ Chemistry Louisiana Comprehensive Curriculum‚ Revised 2008 Page 1 Unit 1‚ Activity 2‚ Specific Assessment Rubric 3 Measurements are to the correct number of significant figures Units included Answers are within the range of acceptable error Measurements finished within the prescribed time limit All measurements 2 2 or 3 measurements 0 Less than 2 measurements All measurements 2 or 3 measurements
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SECTION 1 INTRODUCTION CHAPTER # 1 HAIDRI BEVERAGES (PVT) Ltd. ISLAMABAD 1.1. INTRODUCTION Haidri Beverages Islamabad is situated on the Kahota Road industrial Triangle Islamabad. It occupies an area of about 8 acres. It is a private factory. This factory manufactures carbonated beverages and pure water and sells it as Pepsi‚ Miranda‚ 7Up‚ Mountain Dew and Aquafina. To sell these beverages and water‚ factory has got the license from Pepsi Co International (PCI) USA. So that
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve
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The color of the dye comes from the delocalization of electrons in the πbonding system (Exton‚ 149). Bleach is an aqueous solution that contains sodium hypochlorite (NaOCl). The hypochlorite of bleach breaks the double bonds of the food dye through oxidation‚ forming molecules that do not absorb visible light and thus bleaching the product. During this process‚ hypochlorite is reduced to chloride and hydroxide ions. OCl (aq) + H2O (l) + 2e → Cl (aq) + 2OH (aq) Our goal in this experiment was to observe the reaction and concentration changes between
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ISS IM P R O V E D A P P L IC A T IO N No. 04-11 Tactics‚ Techniques‚ and Procedures Center for Army Lessons Learned (CALL) Fort Leavenworth‚ KS 66027-1350 FOR OFFICIAL USE ONLY TI ON INATI EM D CO LL EC ON HANDBOOK Jun 04 For Official Use Only 1 Foreword In every armed conflict more soldiers become mission incapable by disease and non-battle injury (DNBI) than by combat-inflicted wounds. Many of this DNBI are totally preventable or can be mitigated if
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products in a chemical equation. However‚ in the instance that the products’ mole ratios are unknown‚ it can be determined through the experiment. This method is called continuous variations. In this lab‚ I determined the mole ratio between Sodium Hypochlorite and Sodium Thiosulfate by using continuous variations of ratios in a given volume. This reaction was exothermic so I measured the heat that was produced from the reaction. Hypothesis: The reaction with the proper mole ratio will reach the highest
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avoid skin and eye irritations. Adding pool chlorine (hypochlorite ion) is one way to control acidity and stop algae from growing. SOIL TESTING: Soil samples need to be tested. Many plants will only tolerate a narrow range of acid/base in the soil. For example‚ azaleas grow best in acidic soils‚ where beetroot thrives in slightly alkaline soils. One way to test this is to place a thin layer of white powder‚ such as barium sulfate or calcium sulfate‚ on the top of moist soil. Then place a few
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