otherwise nitrogen is largely “filler‚” adding inert bulk to the atmosphere. In contrast‚ oxygen gas (O2) is chemically very active‚ combining readily with other elements in the process of oxidation. Fuel combustion is a rapid form of oxidation‚ while certain types of rock decay (weathering) are very slow forms of oxidation. Living tissues require oxygen to convert foods into energy. The remaining 1 percent of dry air is mostly argon‚ an inactive gas of little importance in natural processes‚ with a very
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Lab: Comparison of Three Isomers of Butanol Pre-lab: 1. Write the general reaction of an alcohol and HCl. 2. What would the solubility be of an alcohol in water. 3. What would the solubility be of an alkyl halide in water? 4. What is the purpose of KMnO4 in the reactions? Safety: Concentrated hydrochloric acid is corrosive and the vapour is very irritating to the respiratory system. Avoid contact with skin‚ eyes‚ clothing‚ and the lab bench. Wear eye protection and a lab apron.
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FEBRUARY 19‚ 2010 CHRISTOPHER A. BARTLETT HEATHER BECKHAM Applied Research Technologies‚ Inc.: Global Innovation’s Challenges On June 5‚ 2006‚ Peter Vyas paced his office as he grappled with a request for $2 million to relaunch a mini water-oxidation product. Despite two failures to bring this product to market over the past three years‚ his team was confident this latest iteration was a winner. For Vyas‚ general manager of the Filtration Unit of Applied Research Technologies (ART)‚ the request
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Aim To prepare a standard iron (II) solution To determine the concentration of potassium permanganate solution Instructions Preparation of Standard Iron (II) Solution 8g of hydrated iron (II) ammonium sulfate is weighed accurately using a 50mL beaker. The salt is transferred to a 250mL volumetric flask using a filter funnel‚ washed down with distilled water. The container is rinsed carefully and the rinsing is added to the volumetric flask. 100mL of water is added slowly to the volumetric
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TITLE: EFFECT OF DEEP FAT FRYING ON OIL QUALITY AND SENSORY ATTRIBUTES OF POTATO CHIPS/ CHICKEN NUGGETS ABSTRACT: RBD Palm olein oil is a type of vegetable oils with the ratio of saturation to unsaturation 40%: 60%. Soybean oil is another type of vegetable oils with the ratio of saturation to unsaturation 20%: 80%. In addition to the chemical alterations that occur during frying‚ changes in the oil’s physical and thermal properties‚ such as surface tension‚ viscosity‚ density‚ specific
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Topic 11a – Group 7‚ the Halogens Revision Notes 1) Trends in physical properties of the elements • At room temperature‚ Cl2 is a pale green gas‚ Br2 is a brown liquid‚ I2 is a blue-black solid. • In Group 7‚ boiling point increases down the group because the molecules have more electrons and‚ therefore‚ stronger van der Waal’s forces which require more energy to overcome them • Electronegativity is the ability of an atom to attract the electrons in a covalent bond • Down
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Experiment VI: Oxidation of Isoborneol with Bleach Purpose: In this experiment‚ Green chemical procedures were applied to oxidize isoborneol to camphor using bleach (NaOCl)‚ rather than the tradition chromium-based oxidizing reagents. The camphor was then purified using the process of sublimation. Procedure: Using a 50-mL Erlenmeyer flask‚ 1.316 g (8.5 mmol) isoborneol and 1.0 mL (17 mmol) glacial acetic acid were stirred vigorously with a magnetic stir plate. A volume of 1.7 mL NaOCl
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SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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whichmakes about 15–20% of the entry material—leather. The last kinds ofwaste are used leather products which have lost their utility value. 1.1. The possibility of oxidation of CrIII to CrVI The basic question is the possible oxidation reaction from chromium III to chromium VI. In basic solutions‚ the oxidation of CrIII to CrVI by oxidants such as
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Core 1 summary notes 1) Fossils fuels provide both energy & raw materials such as ethylene‚ for production of other substances Identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum Catalytic cracking is the process whereby high molecular weight fractions are broken down to low molecular weight ones. This process is used in petroleum refineries where crude oil is broken down to smaller alkenes and alkanes‚ until ethene‚ propene‚
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