Phenol‚ also known as carbolic acid‚ is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (-C6H5) bonded to a hydroxyl group (-OH). It is mildly acidic‚ but requires careful handling due to its propensity to cause chemical burns. Phenol was first extracted from coal tar‚ but today is produced on a large scale (about 7 billion kg/year) from petroleum. It is an important industrial commodity as a
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recruits‚[5] and production stopped in 1996.[6] Strict attention to good infection-control practices is effective for stopping nosocomial outbreaks of adenovirus-associated disease‚ such as epidemic keratoconjunctivitis. Maintaining adequate levels of chlorination is necessary for preventing swimming pool-associated outbreaks of adenovirus conjunctivitis. Adenovirus serotype 36 Human adenovirus 36 (HAdV-36) or AD-36 is one of 52 types of adenoviruses known to infect humans. AD-36 was first isolated in
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A PROJECT REPORT BASED ON TRAINNING SESSION VINAY KUMAR VINAY GUIDED BY:- ELECTRICAL & ELECTRONICS ENGINEERING OIST BHOPAL. ACKNOWLEDGEMENT Firstly‚ I DHEERAJ KUMAR a vocational trainee-2012 batch would like to thank the management of NTPC LIMITED for arranging such a well managed training programme for the vocational training which
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The Hidden Cost of Convenience in a Bottle Bottled water is everywhere. It can be found in vending machines‚ the gym‚ checkout stands‚ the local drug store‚ television ads‚ and at every public event. It is common knowledge that water is an essential daily need for healthy bodies. In our society Americans have become more health conscious. Bottled water companies are aware of this new craze and are using the growing desire for health and convenience to their benefit. You have
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is conveyed by gravity through a pipeline to a sedimentation basin in barabgay Buntalan‚ Maasin. As soon sedimentation process takes places‚ clean surface water flows down to an overflowing channel connected to the outlet basin passing through chlorination chamber where chlorine is adopted to sterilization. Well‚ aside from those I’ve mentioned‚ I heard nothing more because all of us were already busy taking pictures while touring the place. All of us were so excited to take pictures with friends
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PHYSICAL SCIENCE - REVIEW SUMMARY FOR MID-TERM AND FINAL EXAMS Reference: Exploring Physical Science textbook‚ your notes‚ quizzes and study packs … a supplemental summary of the concepts… use text to add formulas and examples.. Note Bene : The “guiding relationship” used throughout the course: E=MC2 This relationship is the foundation of the laws of conservation of mass and the conservation of energy…. Mass (or energy) can not be created nor destroyed‚ only changed
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“lipid-like” properties and typical pigments found in plants are chlorophyll A‚ chlorophyll B‚ β-Carotene‚ lutein‚ neoxathin‚ violaxanthin‚ and phaeophtin. The most abundant of the pigments are chlorophyll A and chlorophyll B‚ the only Name of Class fast alkanes alkenes ethers halogenated hydrocarbons aromatic hydrocarbons increasing polarity aldehydes and ketones esters alcohols amines slow carboxylic acids General Formula difference between the two is that on ring 3 chlorophyll a has a RH R2C CR2
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UNIT 1: INTRODUCTION TO ORGANIC CHEMISTRY Objectives: At the end of this unit‚ the students should be able to: 1. Learn the Types of Structures a. Sawhorse Structures b. Newman Projections 2. Learn to draw the different Isomers a. Sawhorse Structures b. Newman Projections Types of Structures 1. Two-dimensional structural formula 4. Three-dimensional structural formula 2. Condensed structural formula 5. Sawhorse structures 3. Bond-line structural formula
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w w ap eP m e tr .X w om .c s er SYLLABUS Cambridge IGCSE® Cambridge International Certificate* Chemistry 0620 For examination in June and November 2014 *This syllabus is accredited for use in England‚ Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate. University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their
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bromine water into the boiling tube until the brown colour of the bromine water persisted. After about 10 minutes‚ the brown colour disappeared. Why? The products of cracking also contained saturated (hydrocarbons) / alkanes / methane/reasonable name or molecular formula of alkane‚ which decolourised the bromine water slowly by substitution reaction. (2) 3. The diagram below shows the set-up used in performing a microscale experiment. A drop of hydrochloric acid was added to the drop of chlorine
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