Abstract: In this experiment the conversion of alcohols to alkyl halides are investigated through reflux and simple distillation. These are common procedures used to separate substances. After the reflux and distillation is complete 13C NMR and IR spectrum is used to identify the product or products for each reaction: 1a‚ 1b‚ and 2. Every individual in the group was assigned either 1a (1-propanol) or 1b (2-pentanol)‚ and 2 (1‚4-dimethyl-3-pentanol). The purpose of this experiment was to understand
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Emission Spectroscopy The purpose of this lab was to see that when elements are heated‚ they may enter and excited state. We proved this by doing a flame test. During Part A‚ we used a spectroscope where all of the colors are arranged for you; whereas in Part B‚ we could see and make the colors ourselves and get a more accurate reading of the flames. We had specific elements we were told to put on the wire loop‚ and when we did that we saw different color flames come out of the Bunsen burner. That
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Electromagnetic Spectrum 299‚792‚458 m/s – speed of light 186‚282 mile/s Speed of light = WL x Frequency C=(^)(v) Wavelength sa Electric field Band Designations: ELF- extreme low – 3-30hz SLF- super – 30-300hz ULF- ultra – 300hz-3khz VLF – very – (Vice Versa) LF – low MF – medium HF – VHF – UHF – SHF – EHF – 30-300ghz Standard Frequency JJY- japan – 40khz‚ 60khz MSF – Rugby‚England – 60khz‚5km‚3.1miles) WWVB‚ Colorado‚USA (60khz) HBG – Switzerland (75khz) DCF77 – main‚Germany (77.5khz) LORAN-
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Cost/Benefit Analysis for Implementing ECM‚ BPM Systems Determining the ROI for a significant investment‚ such as adopting an ECM or BPM system‚ is no easy task. Doug Allen‚ CRM‚ CDIA+ T he adoption of enterprise content management (ECM) and business process management (BPM) systems is often spurred by regulatory and compliance concerns. As Thomas Hogan‚Vignette president and chief executive officer‚ told Computerworld‚ the move to adopt ECM technology is driven by “two fundamental business
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Separation of Photosynthetic Pigment by Paper Chromatography I. INTRODUCTION There are different types of components in plant pigments. The most important and abundant chemical pigment found in plants is chlorophyll. This pigment exists in two forms; chlorophyll a and chlorophyll b. Chlorophyll a‚ being the main photosynthetic pigment‚ has a primary purpose to convert light energy to chemical energy used by the plant itself. Chlorophyll b absorbs light in a region of the spectrum apart from the dominant
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on research and development have also become broader each day. Controversies have also emerged and one of the most discussed topics has been directed towards synthetic versus natural colorants. Food pigments are classified based on its origin or source; natural or synthetic. Synthetic food pigments are those substances that are needed to be tested for toxicity and allergenicity before
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Stem and Leaf Plots Examples 1. A stem and leaf plot is a method used to organize statistical data. The greatest common place value of the data is used to form the stem. The next greatest common place value is used to form the leaves. 17 stem leaf 2. EXAMPLE: Make a stem and leaf plot of the algebra test scores given below. Then complete each question. 56‚ 65‚ 98‚ 82‚ 64‚ 71‚ 78‚ 77‚ 86‚ 95‚ 91‚ 59‚ 69‚ 70‚ 80‚ 92‚ 76‚ 82‚ 85‚ 91‚ 92‚ 99‚ 73 1st put the scores in numerical order. 56‚ 59‚ 64
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1 Performance Study of Multimedia Services Using Virtual Token Mechanism for Resource Allocation in LTE Networks Mauricio Iturralde∗ ‚ Tara Ali Yahiya† ‚ Anne Wei‡ and André-Luc Beylot∗ de Toulouse‚ IRIT/ENSEEIHT Université Paris Sud 11‚ LRI ‡ CNAM‚ Laboratoire Cédric {mauricio.iturralde‚ andre-luc.beylot} @enseeiht.fr tara.ali-yahiya@u-psud.fr‚ anne.wei@cnam.fr † ∗ Université Abstract—The LTE specification provides QoS of multimedia services with fast connectivity‚ high mobility and security
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Transpiration and Leaf Resistance By: Bernina Berber Introduction Transpiration is a part of the water cycle process‚ and it is the loss of water vapor from parts of the plants. It is a process similar to evaporation. Evaporation and diffusion cause the plant tissue to have negative water potential. If you were to compare transpiration it would be like saying it is close to sweating (but in plants)‚ especially in leaves but also in stems‚ flowers and roots. Stomata are dots with openings on
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Leaf Cutter Bees Leaf cutter bees‚ play a big part in the world. Not very many people know of their existence or what they actually do. They are very interesting little insects starting from there looks‚ actions‚ and how important their job is as a Leaf Cutter Bee. Leaf Cutter Bees; looks are very distinct. They are not like Honey Bees; they do not look like wasps or hornets. They almost resemble more of a beetle in a way. A beetle has a hard shell on their back and most beetles we think of
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