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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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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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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pressure levels in just a few hours. One study found that drinking one glass of beet juice lowered participants’ blood pressure by an average of 4-5 points. This can be attributed to the naturally occurring nitrates in beets‚ which are converted to nitric oxide in the body. This then relaxes and dilates the blood vessels to improve blood flow and lower blood pressure. Many illnesses and chronic diseases begin with inflammation in the body. Betaine is a nutrient in beets that protects cells‚ proteins
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University of Phoenix Material Final Examination There are 40 multiple-choice questions worth 1/2 point each (total of 20 pts.). Good luck! Answer the following multiple-choice questions by highlighting your answer. Make only one choice that best answers the question. 1. The ability to meet humanity’s current needs without compromising the ability of future generations to meet their needs is a. ecology. b. environmental sustainability. c. natural balance
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power plants‚ and other industrial factories burn fossil fuels such as gasoline‚ coal‚ and fuel oils. When combusted‚ the non renewable resources release pollutants such as sulfur‚ carbon and nitrogen oxides into the air. These oxide combine with the humidity in the air and form sulfuric‚ nitric and carbonic acid. This acidic solution eventually condenses in the air and comes back down to the earth in any from of precipitation (snow‚ rain‚ hail). Upon returning to the earth‚ the acidic precipitation
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a weak carbonic acid. The acidity in the precipitations (rain‚ snow‚ fog) come from gasses released into the atmosphere by industrial factories‚ the combustion of fossil fuels‚ and even volcanoes. These gasses‚ sulfur dioxide and various nitrogen oxides‚ chemically react with the water vapors and oxygen in the atmosphere forming acidic vapors that will eventually rain back down on people‚ cities‚ and the environment. Normal rain water is a little acidic because of the presence of carbon dioxide
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peptides‚ and certain soluble gases. Amino acids: glutamate‚ aspartate(Aspartic acid )‚ glycine( 甘氨酸 ) Amines( 胺 ): dopamine( 多巴胺 )(DA)‚ norepi nephrine (noradrenaline; NE‚ NA)‚ epinephrin e (adrenaline)‚ histamine‚ serotonin (SER‚ 5HT) Soluble gases: nitric oxide (NO)‚ carbon mo noxide (CO)‚ The function of it It carries messages between neurons through influence on the postsynapti c membrane. Have little or no effect on membrane voltage and change the structure of t he synapse. It communicates
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