Outline: Title CHOICE 2: INK CHOMATOGRAPHY Background Information and Research 1. Chromatography is an analytical methor or technique that serves mainly as a tool for the examination‚ separating and identifying mixtures of chemical substances that are or can be coloured. 2.check the presence of any contamination in the manufactured compounds h as medicine‚ Contaminants in rainwater Analysis of narcotics Detection of substances in urine http://en.wikipedia.org/wiki/Paper_chromatography
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LABORATORY DOCUMENTATION REQUIRED FOR DATA EVALUATION USEPA Region IX Quality Assurance Office San Francisco‚ California R9QA/004.2 AUGUST 2001 CONTENTS 1.0 2.0 Introduction General Documentation Requirements 2.1 Data Package Format 2.2 Case Narrative 2.3 Chain-of-Custody 1 2 2 2 3 3.0 Organic Analyses Documentation Requirements 4 3.1 Summary of Environmental Sample Results 4 3.2 Summary of QA/QC Sample Results 4 3.2.1 Instrument Calibration 4 3.2.2 Method
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Branches of Science Word Formation 5 6 Unit 2 CHEMISTRY What is Chemistry? Plural in English Latin and Greek Plural Fundamental Concepts of Chemistry 13 Unit 3 LABORATORY Laboratory Equipment Countable and Uncountable Nouns Alchemy 19 Unit 4 PERIODIC TABLE Periodic Table Consist‚ Contain‚ Include Chemical Elements British v. American English 27 Unit 5 MATTER States of Matter Revision of Tenses Passive Voice 33 Unit 6 INORGANIC CHEMISTRY Types of Inorganic Chemical Reactions Inorganic Nomenclature
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Spectrophotometry was used in the lab to determine whether non-magnetized zeolite‚ magnetized zeolite‚ or charcoal was the more effective sequestration agent for Procion Red Dye. A calibration curve was created with the known concentrations and the absorbances of the Procion Red Dye dilutions at λmax. The slope of the calibration curve was used to determine the concentration of the analytes. As a result‚ charcoal was shown to be the more effective sequestration agent. Introduction PAHs‚ polycyclic
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Section A (Answer ALL questions in this Section.) 1. Rubidium (Rb) and potassium belong to the same group in the Periodic Table. The relative atomic mass of rubidium is larger than that of potassium. (a) Explain whether rubidium is more reactive than potassium. (b) Write a chemical equation for the reaction between rubidium and water. (State symbols should be given.) (c) Suggest how rubidium can be stored safely in the laboratory. (d) Suggest ONE safety precaution for handling
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Chemistry Title: voltaic cell experiment a voltaic cell is a device made from connecting two different metals together and immersing the combined piece into some sort of solution that creates conductive atmosphere ‚ the general purpose of a voltaic cell is to convert the chemical reaction between the metals and the solution into an electrical charge ‚ Hypothesis: the voltage produced by magnesium and cupper = the sum of the voltage produced by magnasium and iron ; and iron and cupper
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used to separate the dye colors from M&M candy to see which colors contain yellow #5. Gravimetric separation will be used to separate salt and sand from a mixture. Procedure The procedure for this lab can be found on pages 16 – 30 in “General Chemistry CHE110L Laboratory Manual Fall 2013”. Data Tables Carbon copies of data tables have been attached to the back of this lap report. Calculations Paper Chromatography- 1. Yellow M&M’s Rf Value: 2. Orange M&M’s Rf Value: 3. Blue M&M’s
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The Rate of a Reaction The area of chemistry that deals with the rate or speed of chemical reactions is known a chemical kinetics. The word “kinetic” is derived from the Greek name kinitikos that means movement or motion. In the present context‚ the kinetic means the reaction rate or rate of a reaction that is defined as the change in concentration of a reactant or a product with time (M/s). Chemical reaction can be represented by the following general equation. Reactants Products It is very important
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Chromatography Abstract Paper chromatography is one of the methods under chromatography‚ it can use in identifying unknown compounds using known compound and it can also use as a separation technique based on the differences in affinities of components of the mixture to a stationary phase and a mobile phase. In the experiment‚ the stationary phase was the filter paper onto which the dye samples were dropped onto while the mobile phase was the solvent mixture containing ethanol and water which
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considered to be the simplest and most widely used of the chromatographic techniques because of its applicability to isolation‚ identification and quantitative determination of organic and inorganic compounds. Definition- Paper chromatography is an analytical method technique for separating and identifying mixtures that are or can be coloured‚ especially pigments. This can also be used in secondary or primary colours in ink experiments. Principle behind paper chromatography- Paper chromatography operate
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