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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Praxis Business School Brand Equity Measurement of Cadbury Dairy Milk A report submitted to Prof. S. Govindrajan In partial fulfilment of the requirements of the course Product and Brand Management On 3-09-09 By Abhishek Das (B08002) Nabila Azmatulla (B08018) Parikshit Ghoshal (B08021) Somnath Roy ~1~ (B08032) Executive Summary Brand equity refers to the marketing effects or outcomes that accrue to a product with its brand name compared with those that would accrue if the same product did
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have similarities in their tissues and DNA. Though parts of the human body vs. an animal’s body may have similarities but people must keep in mind that we are two totally different species. Science shows that animals rarely serve as good models for the human body so why would we feel safe with the product anyways. The best thing for us to do is test out products on other humans so then we can get reliable and accurate results. The Food and Drug Administration (FDA) stated that 92% of all drugs that
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Case study on Internal resistance of chemical cells Chemical cells “A chemical cell converts chemical energy into electrical energy. “Most batteries are combined by several chemical cells. “A chemical reaction occurs inside the battery and causes electric current to flow. There are two main types of batteries‚ which are rechargeable and non-rechargeable.” The application of chemical cells covers wide range in our life. “Batteries are manufactured in many shapes and sizes‚ from very small ones
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conscience is a reliable guide to ethical decision making In order for conscience to be consistently and absolutely reliable‚ infallible‚ it must stem from an infallible source - God. Alternatively‚ conscience might have a potential of ultimate reliability‚ if the faculty of conscience was dynamic and capable of solving problems i.e. if it was an innate part of human nature. St.Paul‚ Newman‚ Aquinas‚ Butler and Freud all argue on their ideas of what the conscience is and how reliable it can be towards
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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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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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EKG Measurement and Interpretation at Rest and During Exercise Jonathan Murdock March 5‚ 2013 March 19‚ 2013 (KIN 375) Purpose: In the United States‚ people suffer from heart problems every day. According to the Centers of Disease Control and Prevention (CDC)‚ every year about 935‚000 people in the United States suffer from a heart attack and about 600‚000 die from heart problems. Electrocardiograms (EKG or ECG) provide important information concerning the electrical activity
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Laboratory Report 1 Title : Accurate Measurement of Mass and Volume Part A: The Formula of Hydrated Copper (II) Sulfate Aim: The objective of this experiment is to find out the accurate mass of a solid and to calculate the moles of an unknown. Materials: The materials used in this experiment are Hydrated Copper (II) Sulfate‚ weighing bottle‚ analytical balance‚ laboratory balance‚ casserole‚ spatula‚ and hotplate. Methods: First‚ approximate 1.0g of hydrated copper (II) sulfate was
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Measurement of Capacitance using Arduino – An Interrupt-based Approach: Part I SAIKAT PATRA‚ SHIBENDU MAHATA Introduction Capacitive sensors are widely employed to measure various physical and chemical process parameters such as displacement‚ acceleration‚ thickness‚ force‚ pressure‚ stress‚ level‚ and humidity. The measured value of capacitance is then calibrated in terms of the process parameter for indication and/or control applications. This project presents an interrupt-based approach by
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