Combustion of Alcohols Purpose: The purpose of this investigation is to use calorimetry to determine the molar enthalpy change in the combustion of each of a series of alcohols. Question: How do the enthalpies of combustion change as the alcohol molecules become larger? Prediction: I predict the bigger the molecule the more the energy will be released. Materials: On lab sheet Procedure: On lab sheet Observation: On other page Analysis: b) i) Ethanol – q=(100g)(4.18J/g/C)(25.5C) q=10659J
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Into thin Air by Jon Krakauer Research Topics Hypoxia “At 29‚028 feet up in the troposphere‚ so little oxygen was reaching my brain that my mental capacity was that of a slow child” (6). Lesser Peaks “To the South‚ where the sky had been perfectly clear just an hour earlier‚ a blanket of clouds now hid Purmori‚ Ama Dablam‚ and other lesser peaks surrounding Everest” (6). Oxygen Tanks “Wanting to conserve what-ever oxygen remained in the tank‚ I asked him to reach inside my backpack and
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WATER QUALITY AND CONTINMINANTION Introduction I. Body Paragraph #1 – Background~ Water quality is decided by assessing three classes of attributes: biological‚ chemical‚ and physical. There are criteria of water quality set for each of these three categories of properties. The standards for drinking water are developed by the Environmental Protection Agency (EPA)‚ World Health Organization (WHO) etc. All municipal (public) water supplies must be measured against these standards. Testing how
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Self Heating Food and Drink Cans Heater meals – originally developed for military use – are ready-made self-heating meal packs. They can be heated in many ways – by pressing a button on the packaging‚ unwrapping and shaking the pack‚ or pouring the contents of one bag into another and waiting for a few minutes – all of which use exothermic chemical reactions. These meals can be used to motivate students to study such reactions relatively safely and without the use of a burner. Plus there is the
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2. Objectives The objectives of this experiment are to observe the keeping quality of some food products‚ study the various simple methods of moisture determinations using different drying method. And determine the water activity in some food samples such as biscuits‚ bread‚ flour and instant noodles by using water activity measurement machine. 3. Theory To determine the moisture content in the food‚ methods such as open dish method and infrared balance method are used. 3.1 Hypothesis
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Kaam se daro nahi‚ Kaam ko karo nahi 2) Kaam karo ya na karo‚ Kaam ki fikr jaroor karo‚ Fikr karo ya na karo kaam ka jikr jaroor karo 3) Kaam ki mat lo tension varna Family payegi Pension encomium ɛnˈkəʊmɪəm/Submit nounformal noun: encomium; plural noun: encomia; plural noun: encomiums 1. a speech or piece of writing that praises someone or something highly. synonyms: eulogy‚ speech of praise‚ panegyric‚ paean‚ accolade‚ tribute‚ testimonial‚ compliment; More Origin mid 16th cent.:
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Microwaves‚ MacBooks‚ and MP3 players all have one thing in common: they are all technology. Technology is used in schools across the nation‚ such as Empire High School which has replaced all textbooks with iBooks to make students excited about learning (Source A). But is technology always good? The Internet‚ a byproduct of technology‚ contains loads of information ranging from when Benjamin Franklin was born to how to conceal a dead body. “There is no quality control on the Internet.” (Source E)
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attainable with technology. But what are the consequences if this resource exceeds its limits? The novel Fahrenheit 451 by Ray Bradbury‚ answers this question. It tells us the story of ordinary individuals such as Guy Montag‚ Mildred‚ and Faber-some who judge their surroundings critically‚ some with artificial vision‚ and a few who abide with conformity. Technology affects everyone in this society in different forms. Fahrenheit 451 demonstrates the deleterious effects of technology when it is overused
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THESIS: TOP-TIER MOTORSPORTS‚ SUCH AS FORMULA 1 SHOULD BE ENCOURAGED TO IMPLIMENT ENVIRONMENTAL FRIENDLY TECHNOLOGIES As much as cynicism surrounding the use of ecofriendly vehicles is that they will be slow and thus be a set back to the gains made in motor sports over the years the bottom line is it’s an important step towards having our children and other generations live in a better future than destroy their live hood today. Since the stakes are high as far as environmental degradation and
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Technologies negative effect on human life Everyday people are surrounded by technology‚ and it is useful in many ways‚ but the problems that arise from it cause harm to people socially‚ physically‚ and mentally as shown in the movie Wall-E and the book Fahrenheit 451. In the movie‚ Wall-E the director show the viewer how people are so absorbed in technology that they miss out on everything going on around them. Ray Bradbury the author of Fahrenheit 451 shows the reader how people lose all communications
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