energy that powers the planet is derived from the burning of fossil fuels (Information 16). Fossil fuels contain impurities and these “impurities such as sulfur also burn and produce potentially dangerous oxides” which are released into the air (Burning www 1). Releasing these oxides into the air has many consequences including smog‚ which is the most noticeable of these problems. The hazy smog that hangs over us in the summer is actually ground level ozone; the most harmful pollutant of
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INITIAL MASS (copper wire) 1.120g FINAL MASS (recovered copper dish mass) 37.88g % Recovery = Recovered mass / Initial Mass . 100 = 37.88g / 1.120g . 100 = 3382% Table 1- Reaction of Cu with Nitric Acid Reaction Cu + 4HNO3  Cu(NO3)2 + 2NO2 + 2H2O Description Nitric acid dissolved copper wire completely A brown gas was produced Black precipitate formed Table 2- Formation of Cu(OH)2 Reaction Cu(NO3)2 + 2NaOH  Cu(OH)2 + 2NaNO3 Description Solution turned
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The patient is a 62 year old Caucasian female who had a partial obstruction in the carotid artery on the right side for over two years and had a stroke in the right hemisphere 6 months ago. The main common carotid artery splits into the external carotid artery and the internal carotid artery. The external carotid artery supplies blood to the exterior features outside of the skull‚ primarily the exterior of the face and the neck. The internal carotid artery supplies blood to the interior of the skull
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Among the most harmful and dangerous non-metal compunds are nitrogen oxides‚ sulphur dioxide‚ carbon dioxide‚ carbon monoxide‚ and hydrogen sulphide. These can cause devastating effects to human beings‚ plants‚ animals and the environment. Matals are generaly less harmful‚ although lead is extremely toxic. Hydrogen sulphide is a highly toxic gas. It has a very bad smell‚ often identified in rotten eggs and stink bombs. Hydrogen sulphide interferes with cellular respiration. If inhaled‚ Hydrogen
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volume of methane‚ CH4‚ measured at 300. K and 825 torr‚ that can be produced by the bacterial breakdown of 1.10 kg of a simple sugar. C6H12O6 --> 3CH4 + 3CO2 79. ■ We burn 12.50 L of ammonia in 20.00 L of oxygen at 500.°C. What volume of nitric oxide‚ NO‚ gas can form? What volume of steam‚ H2O(g)‚ is formed? Assume that all gases are at the same temperature and pressure‚ and that the limiting reactant is used up. 4NH3 (g) + 5O2 (g) --> 4NO(g) + 6H2O(g) 107. A particular tank can
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CHEM 14 Problem Set 2 Deadline of submission: MHE2 – Feb 7; TFC – Feb 8 SOLVE ALL PROBLEMS. SHOW YOUR SOLUTIONS CLEARLY. 1. Arginine is a semi-essential amino acid that is used to form nitric oxide which in turn plays an important role in the nervous as well as cardiovascular system. It contains C‚ H‚ N and O. Combustion of a 0.75 g pure sample which contains 2.591 x 1021 molecules of the amino acid produced 0.03015 mols of water and 578.59 mL of CO2 at STP. The same sample contains 5.181
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During ischemia hypoxanthin is accumlated in the cell as a resulte of adenine neucleotid metabolism‚will then converted to the toxic reactive oxygen species(ROS) upon reoxygenation(Collard et al.‚2001). Ultrastructural changes: 1.2.1.5. The cytoskeleton‚is the internal structural organization of a cell‚ is composed of well organized network of complex structural proteins‚ including actin‚ microtubules and lamins.The cytoskeleton is multifunctional which
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A RESEARCH ON AIR POLLUTION NOWADAYS PROF. MADYA ZAMRI ABDUL RAHMAN LECTURER FATIN ADAWIYAH MOHAMAD PAUZI 2007288974 HAFISHAH HALIM 2007288918 MAZMIR MAT NOH 2007288996 [pic] UNIVERSITI TEKNOLOGI MARA MALAYSIA 20 AUGUST 2007 TABLE OF CONTENT 1.0 ABSTRACT 3 2.0 INTRODUCTION 4 3.0 PROBLEM DEFINITION 5 4.0 METHOD OF SOLUTION 5 5.0 RESULT AND DISCUSSION 5 6.0 CONCLUSION 5 7.0 REFERENCES 5 8.0 APPENDIX 5 1. ABSTRACT In recent years‚ our environment
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Production Of Sulphur Trioxide From Sulphur Dioxide i. The purified sulphur dioxide SO2 and excess air are passed over vanadium(V) oxide V2O5 at controlled optimum condition optimum condition to produce sulphur trioxide SO3. 2SO2(g)+O2(g) 2SO3(g) ii. The optimum used are a) Temperature:450-500°C b) Pressure: 2-3 atmospheres c) Catalyst: Vanadium(V) oxide iii. Under controlled optimum conditions‚ 98% conversion is possible. Sulphur dioxide and oxygen that have not reacted are allowed
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Contents 1) Sulphuric Acid----------------------------------------------------------------(1-6) a. Uses of sulphuric b. Manufacture of sulphuric acid c. Sulphur dioxide and environmental pollution 2) Ammonia and Its Salt-----------------------------------------------------(7-10) d. Uses of ammonia e. The properties of ammonia f. Manufacture of ammonia g. Preparation of ammonium fertilisers 3) Alloys------------------------------------------------------------------------(11-14)
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