Developing Fuels * All gases take up the same volume under the same conditions. AT room temperature and room pressure this volume is 24 dm3. * Number of moles= volume in dm3 24 * Balanced equations can also be used to work out gas volumes. In the equations: 2Na + 2H2O 2NaOH + H2‚ where 15g of sodium is reacted‚ you can work out the volume of gas from working out the number of moles in 15g Na = 0.65 mol. Then you see that 2 mol of Na 1mol of H2‚ Thus 0.65 mol Na 0.325 mol H2. 0.325
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1. Which of the following are the products of a homolytic cleavage of a C-C bond of ethane? A) 2 B) CH3 CH3 C) H D) 2 + + CH3 CH2H3 CH3 Ans: A Chapter 11 Topic: Radicals Section: 11.1 Difficulty Level: Easy 2. Which of the following is the most stable radical? A) B) C) D) E) Ans: B Chapter 11 Topic: Radicals Section: 11.1 Difficulty Level: Easy 3. In the molecule shown below‚ determine which of the labeled bonds is
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Energy 1. Living organisms make compounds which are important sources of energy * outline the role of photosynthesis in transforming light energy to chemical energy and recall the raw materials for this processco2+h2oglucose+o2+h2othis is then stored as carbs and starch | * outline the role of the production of high energy carbohydrates from carbon dioxide as the important step in the stabilisation of the sun’s energy in a form that can be used by animals as well as plants harnesses
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Environmental Chemistry It often matters how much given atoms combine‚ in what arrangement‚ with what others‚ what impulse they receive‚ and what impart. The same ones make up earth‚ sky‚ sea‚ and streams; the same as the sun‚ the animals‚ grains and trees‚ but mingling and moving in every different ways. - Lucretius (95-52 B.C.) in The Nature of Things I. Physical Chemistry Why is Physical Chemistry important in the study of Environmental Engineering? • Applied physical chemistry procedures
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distinguish between organic and inorganic compounds and recognize important organic functional groups. 2. The student will be able to draw Kekulé‚ condensed‚ and skeletal structures for organic compounds; name by IUPAC or common system the classes of alkanes‚ alkenes‚ alkynes‚ alcohols‚ alkyl halides
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Organic Chemistry - Introduction 1 2812 Basic definitions for organic chemistry Scope Organic chemistry is a vast subject so it is easier to split it into small sections for study. This is usually done by studying compounds which behave in a similar way because they have a particular atom‚ or group of atoms‚ (FUNCTIONAL GROUP) in their structure. Catenation The ability to form bonds between atoms of the same element. Carbon catenates to form chains and rings‚ with single‚ double
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Environmental Engineering Environmental engineering is a field related to direct application of science and engineering principles to the environment in which animals‚ humans and plants are living. An environmental engineer as a professional is concerned to protect the environment from deterioration; he is also concerned with the preservation of resources including plants‚ fuels‚ and fossils which can generate energy for human use. The primary task of an environmental engineer is to provide
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removal based upon their structural class. The rhamnolipid biosurfactants enhanced the rate of linear alkane biodegradation more than the biodegradation rate of the monoaromatics. The rate constants for hexadecane and dodecane increased by 111 and 76% to 4.7 and 0.3 mg/h‚ respectively‚ while those of benzene and toluene increased by 34 and 65% to 3.1 and 4.0 mg/hr‚ respectively. The branched alkane degradation rate constants were also increased by 71% for iso-octane and 39% for pristane. In contrast
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F> GUIDELINES FOR THE COLLECTION‚ CARE AND CONTROL OF RAINWATER IN TANKS F A C T S H E E T Rainwater tanks can provide a supply of good quality potable water with proper management of the tank and roof catchment. The Tank & Reduction of Water Consumption Tanks are available in galvanised steel‚ zincalume‚ fibreglass and concrete and all are suitable for the storage of potable water. Rainwater tanks should protect water from contamination. Contaminants such as industrial pollutants‚ dust
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solubility Boiling points increase as intermolecular attractive forces increase. For the alkanes‚ which are non-polar hydrocarbons‚ the intermolecular forces are induced dipole forces. In the case of the alcohols‚ the intermolecular forces include induced dipole forces‚ dipole forces‚ and hydrogen bonding. Induced dipole forces increase with increasing molecular weight‚ so the boiling points of the straight chain alkanes increase as the number of carbon atoms in the chain increases. Therefore pentane
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