Chem 231: Organic Chemistry Lab EXPERIMENT #2 and #3 Extraction and Evaporation Recrystallization and Melting Point Measurement PURPOSE: 1. To the components of a simulated pharmaceutical preparation‚ Panacetin‚ and identifying the unknown component of the mixture through extraction and separation methods. 2. To learn how to purify by recrystallization‚ how to dry them and how to obtain a melting point. PRECAUTION: ACETANILIDE AND PHENACETIN ARE EYE AND SKIN IRRITANTS. Minimize
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Health and safety policies in the work setting Provide all staff with first aid training. All accidents and any incidents are recorded in an Accident Report Book. All accidents are accurately notified to the parent/carer as soon as possible. Hygiene rules relating to bodily fluids are followed with particular care and all staff are aware of how infections can be transmitted. Running risk assessments for al activities and for the general running of the nursery e.g. checking nursery grounds to
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Measurement of Iron in Foods by Atomic Absorption Spectrometry Chem 462 Abstract The purpose of this experiment is to find the amount of Fe in dietary tablets by UV-visible spectrophotometer. A Perkin-Elmer Lambda 6 UV-Visible spectrophotometer will be used for the unknown sample and the iron(II) standards. Introduction Fe3+ in a dietary tablet is converted to Fe2+ and reacats with 1‚10-phenathronile to form the tris(1‚10-phenanthroline) iron (III) complex. Hydroquinone is used as the
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CU2939 Develop Health and Safety and Risk Management Policies‚ Procedures and Practices in Health and Social Care or Children and Young People’s Settings Level 5 Credit value 5 GLH 33 Unit summary The purpose of this unit is to assess the learner’s knowledge‚ understanding and skills required for Health and Safety and Risk Management‚ including the development of policies‚ procedures and practices in health and social care or children and young people’s settings. Additional Assessment
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THE HIGHFIELD LEVEL 3 Health & Safety TRAINING PACK Lecture programme designed and written by Kirstie Trasler and Ian Fisher Disclaimer The information provided in this training package has been carefully compiled to ensure its relevance and accuracy. However‚ no liability or legal responsibility is accepted for the content or any errors or omissions. ©Highfield.co.uk Ltd Apart from any fair dealing for the purpose of private study or the purpose permitted under the UK Copyright‚ Designs
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Introduction In a scientific observation‚ measurements are necessary to collect data and to give the objects that we observe a quantitative identity. In order to make valid measurements‚ scientists strive to make their measurements both accurate and precise. Today‚ scientists use the metric system‚ which is the most widely used system of measurement. The purpose of today’s lab is to make metric measurements of length‚ mass‚ volume‚ and temperature. Summary of the Procedure Procedure 2.1
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CHAPTER 2 PERFORMANCE MEASUREMENT IN AGRI-FOOD SUPPLY-CHAIN NETWORKS An overview JACK G.A.J. VAN DER VORST Logistics and Operations Research Group‚ Wageningen University‚ Hollandseweg 1‚ 6706 KN Wageningen‚ The Netherlands Abstract. Many researchers and practitioners are working on the enhancement of supply-chain collaboration in order to improve performance of the individual supply-chain members and supply-chain performance as a whole. Performance measurement fulfils a crucial role
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Techniques and Measurements Course Number: CHE 111 Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel‚ which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis
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Careful measurement of emf and or internal resistance of a cell Aim To measure voltage and current in the circuit and from that figure work out emf and internal resistance of the cell‚ to identify errors involved and deal with them in the most effective way and maintain a safe working environment at all times. Background EMF (electromotive force) is a measure of work done per unit of charge and is measured in volts. Internal resistance is resistance in ohms of the cell. I will be using a 1.5V battery
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CYP 3.1 1.2 The difference between the sequence and rate of development is the sequence means that there is a definite pattern to a child developing e.g. a toddler being able to walk before they can run. The sequence is the speed at which development happens. When the child is born it will go through different stages of development and at different rates. At the start of a babies life it will start to learn reflexes by exploring new objects through the means of touching and seeing‚ over an
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