ground temperatures at a global average of about 60 degrees farenheit. Without them the average would be below the freezing point of water. The gases have this effect because as incoming solar radiation strikes the surface‚ the surface gives off infrared radiation. The effect is comparable to the way in which a greenhouse traps heat and that is how we got the name greenhouse
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The average University student has many tasks to accomplish and much studying to do while combating the onslaught of sleep. Students at the University of the West Indies Mona are no different and recommended amongst themselves a highly rated and popular health supplement “Yeast-Vite” [8]. Yeast-Vite is a health supplement pill which helps people fight fatigue and improve alertness. The active ingredients in Yeast-Vite are caffeine‚ vitamin B1‚ vitamin B2‚ vitamin B3. The other ingredients are:
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shape of the crystals will differ for each specific drug. 5. What is spectrophotometry? How can this useful in identifying drugs? A spectrophotometry device can emit both UV and infrared light as it measures how a sample either reflects or absorbs. Though ultraviolet spectrophotometry cannot identify a drug‚ infrared spectrophotometry can‚ since the pattern of light is unique to each type of compound. 6. Why are forensic scientists an important part of drugs cases? forensic scientists can use
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of the line was found to be y=0.1765x + 0.0705. It was then determined that there was no iron present in water sample A‚ while for water sample B‚ the iron was present in the proportions of 0.9037ppm‚ 1.614x10-5M and 9.037x10-3%. Introduction: Spectroscopy is the study of the interaction of light or electromagnetic radiation with matter. Spectrophotometry is any technique that uses light to measure chemical concentrations. Electromagnetic radiation is a form of energy when reacted with matter‚ can
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GLOBAL WARMING AND GREEN HOUSE EFFECT – HOW CAN WE STOP THEM ? The greenhouse effect occurs when certain gases in the atmosphere trap infrared radiation whereas Global warming refers to an increase in the average temperature of the Earth as a result of the greenhouse effect. Burning fossil fuels raises the level of carbon dioxide in the atmosphere‚ and it is a major contributor to the greenhouse effect and global warming. We can help to reduce the demand for fossil fuels‚ which in turn reduces
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------------------------------ = -------------- x 100 = 10.6% Amt. Cloves used 5 g In this experiment‚ it was shown that about 10.6% of an oil could be recovered from cloves by steam distillation. This oil was identified as eugenol by comparison of its infrared spectrum with an authentic sample. POST LAB 2.) The active component is Eugenol. It is a phenylpropene‚ an allyl chain-substituted guaiacol. Eugenol is a member of the phenylpropanoids class of chemical compounds. It is slightly soluble in water
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2010) (2010‚ in press) 3 Signal Processing Perspective)‚ vol. 2009‚ Article ID 184617‚ p review. J. Comput. Vis. Image Understanding 97(1)‚ 103–135 (2005) sensing. 2004 IEEE Intelligent Vehicles Symposium‚ pp 8. Mudaly‚ S.S.: Novel computer-based infrared pedestrian data-acquisition system. Electron. Lett. 15(13)‚ 371–372 (1979) Veh. Symposium 1‚ 15–20 (2002) 242 Trans. Veh. Technol. 53(6)‚ 1666–1678 (2004) 11 Sci. 3546‚ 527–531 (2005) 12 IEEE Trans. Pattern Anal. Mach. Intell. 29(4)‚ 627–639 (2007)
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additional 1mL of bleach for the same reason. However‚ TLC plate 4 did not show any SM in the CP lane and this was after adding an additional 3mL of bleach. The plate only showed a CP spot‚ indicating that the reaction had gone to completion. 3. IR Spectroscopy Peaks Peak Functional Group1 2362.05 cm-1 Very weak band 1712.90 cm-1 (Strongest peak) C=O (ketone) 1598.22 cm-1 C=C (aromatic) 1450.50 cm-1 C=C (aromatic) 1150.63 cm-1 Very weak band 735.43 cm-1 =C–H (alkene) 669.78 cm-1 Very weak band Attached
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as you are busy‚ you can easy to do what you want to change at home. Regarding to the basic functions of a home automation system‚ it is basic on wireless remote control. It is using radio wave signals to control home electronic devices and an infrared signals to alert users to intruders and call fire station or security room. Also‚ it provide door access controller including image recording system and digital door lock. Concerning the Evaluation‚ Samsonite SNT-8 is significantly more reasonable
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of triorganotin(IV) complexes of monofunctional bidentate Schiff base have been synthesized and characterized through elemental analysis‚ conductance measurements‚ molecular weight determinations‚ UV-visible‚ multinuclear (1H‚ 13C‚ 119Sn) NMR spectroscopy‚ FT-IR‚ X-ray powder diffraction and theoretical calculations. On the basis of these techniques‚ it is proposed that the ligands are bounded to the tin atom through the azomethine nitrogen and carboxylate oxygen. The data reveal that triorganotin(IV)
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