series of ether extractions and aqueous washes; then the ether was dried with MgSO4 and removed by rotary evaporation. The melting point of the yellow‚ sticky crude product was 91-119 oC. This crude product was then recrystallized from methanol‚ yielding 0.128g of pale yellow crystals with a melting point of 131-135 oC. This represents 0.33% of the original mass of the two yolks. The cholesterol was then dissolved in ether and further purified by bromination with a bromine/acetic acid reagent and debromination
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brains in the business. It’s been eight weeks and now it’s judgment day. It’s time for the weigh-in. Both families gather for the moment of truth. Ed Rankin is first to step up. Eight weeks ago‚ Ed weighed 257 pounds. MARTIN BASHIR (ABC NEWS) (OC) Let’s see where you are. Wow. You are down to 235 pounds. You have lost 22 pounds. And what about your clothes. I mean‚ these are just falling off. ED RANKIN (FATHER) They are falling off. I have to walk around holding them. The best part
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Acid-Base Extraction: Separation of an Organic Acid‚ Base and a Neural Compound Introduction/Background Acid base extraction is a widely used commercial method in separating acids‚ bases and neutral compounds. This is concept is based on several physical properties of the compounds‚ such as boiling point‚ melting points and solubility. The different solubility properties of the protonated and non-protonated forms of these compounds depend on the functional groups present‚ such
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Table 1 | Volume of cold water | 237 mL (1cup) | Volume of hot water | 237 mL (1 cup) | Beginning temperature of the cold water (oC) | 25oC | Beginning temperature of the hot water (oC) | 80oC | Final temperature of the cold/hot water mixture (oC) | 52oC | Change in temperature of the cold water (oC) | 27oC | Change in temperature of the hot water (oC) | 32oC | Mass of the cold water (kg) | .237kg | Mass of the hot water (kg) | . 237kg | A. Use the beginning temperature of
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Unit 4 Assessment 2-Benzoic Acid Synthesis Synthesis and Investigation of Benzoic Acid Our aims: Create benzoic acid using benzaldehyde and hydrogen peroxide. Then remove some impurities from the benzoic acid crystals. Apparatus: Titration Pipette (25 cm3) Burette (50 cm3) Retort stand Clamp Conical flask (250 cm3) Volumetric flask (250 cm3) and stopper White tile Beakers (250 cm3) Dropping pipette Filter funnel Deionised water Phenolphthalein indicator Volumetric flask
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Growing up in the church starting at a very young age was most definitely a blessing but also a curse. I always loved going to bible class when I was in preschool and elementary school but during the beginning of middle school‚ I had a change of heart. I didn’t have the same fire burning in me that I once did. I didn’t truly know what it meant to be a christian and everyone noticed my sudden change. During middle school I struggled a lot with making friends and fitting in. Because of my faith‚ I
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References: The SONET and SDH Signal Hierarchy: How many T-1s are in an OC-1‚ OC-3‚ OC-12‚ or OC- 48?. (2009). Retrieved from http://hubtechinsider.wordpress.com/2009/05/10/the-sonet-sdh-signal-hierarchy-how-many-t-1s-are-in-an-oc-1-oc-3-oc-12-or-oc-48/ Amplitude Modulation. (2012). Retrieved from http://demonstrations.wolfram.com/AmplitudeModulation/ Goleniewski‚ L.‚ & Jarrett‚ K. W. (2007). Telecommunications
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CHM1002 Synthesis of Benzanilide and Methyl 3-Nitrobenzoate and the Identification of ‘Unknowns’ from Spectroscopic and Physical Properties James Lucas 10394308 23/11/12 Introduction In this series of practicals it was the aim to synthesise both Benzanilide and Methyl 3-Nitrobenzoate. Benzanilide was synthesised using The Schotten Baumann reaction which takes a hydrogen atom from an amino group and substitutes it for an acyl group. For Methyl 3-Nitrobenzoate
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on Optical Carrier Level 1 (OC-1)‚ which defines transmission rates of 51.84 Mbps. Therefore‚ the hierarchy starts with data rates of close to T3 speeds of 51.840 Mbps. The transmission rate of 51.840 Mbps is also called STS-1. Every OC-x transmission rate of SONET is the exact multiple of the basic speed‚ which creates a straightforward way of multiplexing the higher speed formats. The international hierarchy is known as SDH‚ with starting data rates of OC-3. Table 1.1 Optical Carrier
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segment (OCS) and while maintaining their gourmet coffee quality. They have less than six months to launch the product‚ and very limited budget for production costs and expenses‚ and for changing the curent portion packs. There are two strong competitors in the away from home market‚ Filterfish‚ and Flavia. There are some other competitors in the at-home market. In my opinion‚ this is marketing-mix problem and the end goal is to maximize the at-home segment and protect the established OCS business
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