Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon
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Separation Techniques Aim: To separate a mixture of Iron filings‚ CaCO3‚ NaCl into their pure substances. Apparatus: • 2x 150ml beakers • 1x 150Ml Beaker • Magnet • Matches • Evaporating basin • Bunsen Burner • Water • Funnel • Retort stand • Funnel Paper • Sieve • Iron Filings • CaCO3 • NaCl • tripod • Gauze Mat • Cling Wrap • Saftey Goggles Method: 1. Gather Apparatus and the mixture of Iron‚ CaCO3 and NaCl. 2. Weigh beaker and mixture. 3. Use magnetic
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Chromatographic Separation of Sodium Fluorescein and Methylene Blue In this two-part lab the students will: • Learn the techniques associated with thin layer and column chromatography. • Determine the effects of the stationary phase in separating a mixture by chromatography. • Determine the effects of the mobile phase in separating a mixture by chromatography. • Conduct a separation using column chromatography. In the first week‚ the students will determine the best solvent system for
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SCHEME OF WORK Centre: Course Code: Name of Course Horticulture Session length: 2.5 hours Name of tutor: Number of sessions: 6 Aims of course: To introduce students to horticulture giving them a basic understanding of plant life. Demonstrating and giving practical sessions on planting bulbs and seeds to develop the student’s skills and knowledge. Assumed knowledge: Basic skills read & write and ICT To enrich the learners’ experience and in line with Ofsted priorities‚ embed
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Objective: Separate and purify acetanilide from a mixture by recrystallization. Compare the melting points of crude and recrystallized acetanilide. Introduction : The most common method of purifying solid organic compounds is by recrystallization. In this technique‚ an impure solid compound is dissolved in a solvent and then allowed to slowly crystallize out as the solution cools. As the compound crystallizes from the solution‚ the molecules of the other compounds dissolved
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Sahara and Ponzi schemes: What are the parallels? Dr KM Abraham‚ a former Whole-Time member of the Securities Exchange Board of India (Sebi) – the man whose original order led ultimately to a Supreme Court verdict forcing the Sahara Group to wind up two bond schemes and repay investors over Rs 24‚000 crore – made a brief allusion to Ponzi schemes in his order. While ordering two Sahara group companies‚ Sahara India Real Estate Corporation (SIREC) and Sahara Housing Investment Corporation (SHIC)
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-1- Voluntary Retirement Scheme (VRS) for the employees of Public Sector Undertakings. 1. SHORT TITLE: (i) (ii) (iii) 2. OBJECTIVE: (i) (ii) (iii) 3. This scheme may be called the Punjab State Public Sector Undertakings Voluntary Retirement Scheme (VRS) 2002. This scheme shall apply to all the Public Sector Undertakings (PSUs) including all Cooperative Institutions of the State of Punjab. This will apply to the Subsidiaries of the PSUs defined as entities in which PSUs
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Pyramid schemes are very harmful towards investors‚ and are hard to watch out for unless you know exactly what they are‚ why they fail‚ the effect of the failure‚ common victims‚ how to avoid them‚ and how to prevent them from spreading. More individuals are hurt than are helped when dealing with these scams. Individuals should be more informed about pyramid schemes‚ because they can be easily disguised. Participating in scams‚ will more than likely lead to a loss in money. “A pyramid scheme is a get-rich-quick
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p IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI Chemistry Higher level and standard level Specimen paper 1s‚ 2s and 3s For first examinations in 2009 CONTENTS Chemistry higher level paper 1 specimen paper Chemistry higher level paper 1 specimen markscheme Chemistry higher level paper 2 specimen paper Chemistry higher level paper 2 specimen markscheme Chemistry higher level paper 3 specimen paper Chemistry higher level paper 3 specimen markscheme
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A Ponzi scheme is a fraudulent investment operation that pays returns to its investors from their own money or the money paid by subsequent investors‚ rather than from profit earned by the individual or organization running the operation. Objectives We learn how it started. We learn the key elements in running a Ponzi scheme. We learn how big a Ponzi schemes can get. We learn how a Ponzi scheme falls apart. We learn how to identify and avoid being involved in a Ponzi scheme.
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