MIP experiment on the melting temperature of different polymers 8.1 Compare and comment on the results obtained. LDPE has the lowest average melting temperature (103.6°C) out of the 4 polymers. It is because LDPE is a linear polymer that has a branched structure which is able to expel the applied heat faster through the “branches” and melt faster. HPDE has the second lowest average melting temperature (139.5°C) out of the 4 polymers. Unlike LDPE‚ HDPE does not have a branched structure and the
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Starbucks is one of the most successful business serving coffee and drinks beverage. Starbucks is known for serving hot and cold coffee beverage with a high quality products. Starbucks went public in 1992 with a priced at $17 share and the stock jumped to $21 at the opening bell. By 2007 Starbucks had become one of the most widely recognized and admired global brands. In addition‚ by 2008 Starbucks has 4500 locations in 43 countries out side the United States. Overall Starbucks known as a good business
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The Computerized Enrollment System Of Saint Francis College-Guihulngan For Sy 2013-2014 A PROJECT Presented to Engr. Dominic B. Vidal In Partial fulfillment Of the requirements in IT 205 (Software Engineering) For the Degree of Bachelor of Science in Information Technology By: Joan Casagan Sarah Jane Apatan Shayne Ganaganag Bart Ignacio Executive summary A. Table of contents B. List of figures C. List of tables D. List of Notation I. Introduction
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Melting point 1. What two effects do impurities have on the melting point of an organic compound? Soluble impurities affect the melting point of a solid in the following manner. a. The presence of an impurity in the molten compound reduces its vapor pressure thus lowering the melting point of the compound. b. Broaden the melting point range. 2. For what tow purpose are melting points routinely used a. To determine the identity of an organic solid. b. To determine the purity of an organic solid
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another‚ either through geographical proximity‚ migration‚ conquest‚ trade and exploration‚ or in other ways‚ will start to syncretize aspects of each culture. A melting pot is a metaphor for a society where many different types of people blend together as one. America is often called a melting pot. Brazil is a melting pot‚ the most authentic melting pot in the entire World. Brazilian culture is a mix of cultures from other parts of the world‚ it’s impossible to talk about Brazilian culture without the
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Preparation of an Ester Acetylsalicylic Acid (Aspirin) OBJECTIVE: To become familiar with the techniques and principle of esterification. DISCUSSION: Aspirin is a drug widely used as an antipyretic agent (to reduce fever)‚ as an analgesic agent (to reduce pain)‚ and/or as an anti-inflammatory agent (to reduce redness‚ heat or swelling in tissues). Chemically‚ aspirin is an ester. Esters are the products of reaction of acids with alcohols‚ as shown in the following equation using
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lThe 10 points which i’ve picked up from various kind of informative books i borrowed are: A wind turbine is a product that converts wind energy into electrical energy that is use to distribute to the homes of people. Benefits of a wind turbine: It does not release any harmful gases into the air when powered and it is also affordable in many different countries for supplying electricity to homes‚ by converting the wind energy to electricity for distribution. A hydropower is a production of
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MOL AccessPortal Sdn berhad was incorporated in Malaysia under the Companies Act‚ 1965 on 9th of February 2000 as a predicate limited company under the name of Superior World Sdn Bhd. It assumed its present name on 8th of July 2000 and was converted into a public limited company on 29th of April 2002. MOL has obtained approval from Central Bank of Malaysia as an e-Money operator in Malaysia in December 2002. MOL was officially listed on the MESDAQ Market of Bursa Malaysia Securities Berhad under
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of the specialized underlying structures of these life-forms. In order for us to appreciate these special adaptation‚ we first need to know how a typical plant or an animal cell organelle behaves in different water and solute concentrations. In this lab‚ we will determine the effects of hypertonic‚ isotonic and hypotonic solutions on plant and animal cells. In general when an animals cell’s placed in hypertonic solution it shrivels; a plant cell on the other hand undergoes plasmolysis. When an animal
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(Acetylsalicylic Acid) Abstract:- Aspirin (acetylsalicylic acid) is produced experimentally in the lab. The resulting percentage yield is 65.5%. The purity of the obtained product is tested using the melting point and Ferric Chloride Test (FCT). The aspirin was massed‚ and the melting point was determined. Based on the data collected‚ there was a total yield of 1.757g of purified aspirin‚ which had a melting point range of 125°C-130°C. Results of the Ferric Chloride test showed that no unreacted salicylic
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