This flask was placed in a water bath on a magnetic stirrer. 3 mL of of 6% aqueous sodium hypochlorite was slowly added to the flask while maintaining a temperature below 30 degrees celsius. After thirty minutes a Starch/Iodine test was conducted to test for excess sodium hypochlorite
Premium Chemical reaction Chlorine Chemistry
gaining power and only getting more powerful. In the year 1933 Adolf Hitler became chancellor of Germany. In 1934 Hitler gained the presidency of Germany. (28 Wood Angela) Immediately as Hitler gained total power of Germany concentration camps in Germany had been starting up. Concentration camps have already been starting to grow throughout Europe within the first year that Hitler was their. Adolf Hitler has became chancellor of Germany‚ the date was January 30th 1933. (28 Wood Angela) Hitler had been going
Premium Adolf Hitler Nazi Germany The Holocaust
Water Treatment In South Africa: Is South Africa the last to know about the Growth of Technology? Group B: Alex Afonso Bonney Mankatah Patrick Marrero Damaris Morales Daniel Occhipinti Debora Robinson HUMN 432: Technology‚ Society‚ & Culture Professor John Frye February 14‚ 2012 Table of Contents Abstract 3 1. Debora Robinson 4 Introduction 4 History of South Africa 4 Description of Technology 7 History of Technology
Premium Drinking water Water supply Waterborne diseases
Fracking for Natural Gas—Legal‚ Political‚ Environmental and Ethical Issues Daniela Vega‚ Ebony Daughtry‚ Ericka Koussi‚ Frederick Gibbs & Paul Payway This paper is submitted in partial fulfillment of the requirements for Business Ethics BUS 5933 49 Texas Woman’s University School of Management Professor H. Guy Smith December 9‚ 2012 Table of Contents |Introduction....................................................................................................
Premium Natural gas Oil well Petroleum
Determination of the Dosage of Bleaching Powder Required for Sterilization of Different Samples of Water CONTENTS 1. INTRODUCTION 2. GENERAL METHODS USED 3. THEORY 4. REQUIREMENTS 5. PROCEDURE 6. OBSERVATION TABLES 7. CALCULATIONS 8. RESULT 9. CONCLUSION INTRODUCTION Water is the major constituent of all living beings. Water necessary to sustain all types of life. The water used for drinking purpose by human beings should full the following conditions : 1. It should
Free Titration Iodine Chlorine
Abstract: The main objective of this Lab‚ is to experiment with stoichiometric measurements‚ since it is one of the most important subjects in chemistry. In addition‚ stoichiometric measurement is widely used in chemistry‚ because it indicates the proportion of mass in which various substances react. By examining one specific example of stoichiometric determination‚ which is: “Stoichiometry and limiting reacting”‚ we found out the different mass proportions in which substance react. In this case
Premium
non-point source pollutants are recognized as a major cause of receiving waters quality deterioration. To date most research has focused on specifying temporal variations of stormwater quality parameters which includes high uncertainties and also increases the risk of pollution control structures failure. Traditionally‚ the temporal variations of quality parameters in forms of either pollutograph or Event Mean Concentration (EMC) is obtained by sampling stormwater at the outlet of urban catchments
Premium Water pollution Pollution Water
written as Fe(phen)32+‚ has a maximum at about 510 nm. This complex is stable indefinitely at pH values of 3 or higher. Measuring the analyte solution’s absorbance at λmax is a sensitive method for determining iron concentrations. You will prepare a series of standard solutions containing known concentrations of Fe(phen)32+‚ as well as a solution with Fe from a vitamin tablet‚ and measure their absorbances on the Chemistry Department’s Beckman DU7400 spectrophotometer. Construction of a calibration curve
Premium Absorbance Chemistry Laboratory glassware
Abstract The following experiment details the effect of different concentrations of catalase on the production of oxygen and water through the breakdown of Hydrogen Peroxide. In this experiment paper disc where coated in varying concentrations of catalase‚ 0‚ 25‚ 50 75 and 100%. The time taken for the disc to float between two markers on the side of a glass was then recorded. This experiment demonstrates that the higher the concentration of enzyme used the greater the production of oxygen on the paper
Premium Enzyme Catalase Oxygen
Objective To determine soluble solid concentration in some fruits including tropical and temperate fruits by using handheld refractometer. Introduction “Sugar are the major soluble in fruits juices and estimate of sweetness. Other soluble materials include organic and amino acids‚ soluble pectins‚ and others. Soluble solid concentration can be determined in a small sample of fruits juice using a hand held refractometer. The measurement must be made at 20°C to get an accurate value. This instrument
Premium Fruit Banana