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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Assignment Type: Individual Project Deliverable Length: 10–PowerPoint Slides Points Possible: 150 Due Date: 2/16/2013 11:59:59 PM CT You are between jobs and have decided to relocate to a city west of the Mississippi River‚ but you are unsure of what size or type of city you and your family can afford to live in. Choose 4 cities west of the Mississippi River‚ each of a different size‚ and research the housing prices for a 3-bedroom‚ 2-bath condo for each city. Determine how supply
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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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Leadership Challenge: Selecting Team Members The leader of your client organization has observed a lack of flexibility and a slow decision-making process in many of the departments. He believes that he is not serving his customers well‚ and has decided to move to a team environment and to push many of the decisions to the lowest possible levels. In other words‚ he wants to create a team-based‚ empowered organization. Several of his best managers are resisting the idea strongly. They not only feel
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As Natural Science is the branch of science which deals with the physical world instead of humans‚ such as physics‚ chemistry‚ biology and geology; accuracy and simplicity does fall into it. Natural Science is usually accurate because one who is studying in the field of natural science‚ would like to get close to the truth as close as possible. People who have faith in science and natural science more specifically‚ all try to be as accurate as they can
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The Relationship of the Human Sciences to the Natural Sciences To a great extent‚ however‚ the human sciences do encompass natural facts and are based on knowledge of nature. If one were to imagine purely spiritual beings in a realm of persons which consisted only of such beings‚ then their coming-to-be‚ preservation‚ and development‚ as well as their extinction - whatever representations we may form of the background from which these beings appear and into which they disappear - would be dependent
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