immediately CH2 = CH2 + Br2 → CH2BrCH2Br (b) Add acidified KMnO4 at room temperature: Decolourisation of KMnO4 occurs immediately CH2 = CH2 + [O] + H2O → CH2 – CH2 ⏐ ⏐ OH OH (a) Insert a glowing splint into the hydrocarbon hydrocarbons: Burns with smoky flame Aromatic hydrocarbons (b) Add concentrated nitric(v) acid and concentrated sulphuric acid at 55 °C: Yellow oil with bitter almond smell produced benzene NO2 + HNO3 (HONO2) Alkylbenzenes – CH3 CH3 + H2O Add alkaline
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Redox Titration Lab ABSTRACT: In this lab‚ 0.010 M purple-colored potassium permanganate solution was standardized by redox titration with iron (II) ammonium sulfate hexahydrate (FAS). The average mass of the three flasks of FAS was 0.483 grams. Once the concentration of the standard solution of KMnO4 (aq) was determined‚ it was used to determine the concentration of Fe2+ in iron pills. On average‚ there was 0.01813 L of solution used. With this information and the balanced net-ionic equation
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Chemistry (the etymology of the word has been much disputed)[1] is the science of matter and the changes it undergoes. The science of matter is also addressed by physics‚ but while physics takes a more general and fundamental approach‚ chemistry is more specialized‚ being concerned with the composition‚ behavior (or reaction)‚ structure‚ and properties of matter‚ as well as the changes it undergoes during chemical reactions.[2] It is a physical science which studies various substances‚ atoms‚ molecules
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LEARNING OUTCOME : : : : Organic Chemistry I CHM 3201 4 (3+1) 160 hours per semester : : None At the end of the course‚ students will be able to: 1. Define and explain the basic concepts in organic chemistry such as electronegativity‚ orbital hybridization‚ nomenclature‚ resonance and isomerism‚ as well as organic reactions mechanisms (C4‚ CTPS) 2. to conduct experiments that demonstrate the characteristic reactions of important functional groups of organic compounds (P4) 3. interact and
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VRAJESH PATEL April 20‚ 2013 TITLE: Structure Elucidation of Organic Compounds Using Infrared Spectrometry and Computer Molecular Models. OBJECTIVES: Using the Spartan Student v5.0.0. Software in computer‚ determine the absorption frequencies of C=O str.‚ C-H str.‚ and C-H bend in the following molecules: 1. Benzaldehyde 2. Ethyl Benzoate 3. 3-Pentanone 4. Pentanal * For given unknown Infrared spectra‚ figure out the compounds based on the absorption
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Priya Chauhan August 27‚ 2012 Period 3 Rainbow Lab Objectives: We should develop skills measuring chemicals with a graduated cylinder. We should practice using the metric system. We should have the ability to follow directions and to test precision. We should practice lab safety procedures. Procedures: Part 1: Label six tubes in order: A‚ B‚ C‚ D‚ E‚ and F. Fill a beaker half way with water. Use it to rinse your graduated cylinder and test tubes. The second beaker is for
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Combustion of Acetylene (ethyne) Rx: Back Why I don’t do acetlyene explosions in our lab.... Combustion of alkanes A quick review.... • Combustion reactions of alkanes consist only of C and H (hydrocarbon) • require O2(g) as a reactant • produce CO2(g) and H2O(g) and a large amount of energy!! Oxygen can be the limiting reagent which can lead to Incomplete combustion. For complete combustion of a hydrocarbon‚ oxygen must be in excess. If there isn’t sufficient oxygen‚ incomplete combustion occurs
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Organic vs. non organic There is a vast majority of food in our world today‚ when we consume this food we must stop to think about what exactly it is made of. In today’s society we are always looking for the best healthy foods that are available to us. We want good‚ nutritious‚ healthy foods so that we can live a long and healthy life. We live in a world where we have fast‚ cheap and processed foods all around us. Have you ever considered going a different route? Organic is a different way to eat
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I. Introduction: Thesis Statement: People should consume organic foods because they have More nutritious‚ No pesticides are used on them‚ No hormones or antibiotics are used in their production A. Major Proposition or Premise (before because): People should consume organic foods B. 1st Minor Proposition or Premise (after because): More nutritious. C. 2nd Minor Proposition or Premise (after because): No pesticides are used on them. D. 3rd Minor Proposition or Premise (after because):
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of one or more compounds‚ is injected into the column and is carried through the stationary phase by atmospheric air‚ which acts as the mobile phase. The nonpolar coating of the stationary phase most strongly retains solutes of the same polarity. Organic compounds flowing out of the chromatography column are then detected by a chemical sensor that produces electrical responses proportional to the concentration of the compounds. The presence of such a chemical at the detector is seen as a peak on a
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