distance barriers some tools are required to communicate each other. At the end of 19th century‚ reckoned \scientist Graham Bell laid the first stone in the field of communication using different tools regardless of distance. He invented first wired base telephony equipment. It was the solution for the voice communication for the people how far apart they are. After this radio based communication systems Era started. It was an extension of wired based networks. In the beginning it was developed for
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DETERMINATION OF SAPONIFICATION AND IODINE NUMBERS OF SOME LIPIDS A.L. ASCANO1 C.V. OPONDA1 1INSTITUTE OF BIOLOGY UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY‚ PHILIPPINES DATE PERFORMED: FEBRUARY 19‚ 2013 INSTRUCTOR’S NAME: FRANCESCA N. BELTRAN _____________________________________________________________________________________ ABSTRACT _____________________________________________________________________________________ INTRODUCTION Lipids are long aliphatic hydrocarbon chains
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Skinny Dipping and You Why this is no longer a perfect date 12/8/2007 Aaron Gonzalez Materials and Methods Nikon Compound Microscope Glass Microscope slides Cover Slips Paper Towels Thermometer Glass Jar pH Strips I took the sample pond water from the library pond (Central Michigan University)‚ thinking well during mock rock this year I want to know really what I am swimming in. So I took a jar then scooped it up from the muskiest part of the pond. After collecting
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Part 1 Part 1 of the experiment investigated the effect of different temperatures on beetroot cell membranes (a type of plant cell). Through this experiment‚ the process of diffusion and osmosis was in action. Various temperatures ranging from low temperatures to high temperatures such as -5⁰C‚ 5⁰C‚ 30⁰C‚ 50⁰C and 80⁰C were used to investigate the temperature effects on beetroot cell membranes. The hypothesis predicted that the higher the temperature the darker the beetroot substance and the lower
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With the warm days slowly starting to slip away‚ it is time to start thinking about winterizing your pool‚ especially if you live somewhere where it gets below freezing. Winterizing your pool will protect your pool equipment and make it easier for you to get your pool ready again next spring. #1 Check Your Chemicals Before you shut down your pool‚ you need to test the chemical levels of your pool using a chemical testing kit. You are going to want to test the calcium hardness‚ alkalinity and pH levels
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Interactive Science 2B Chapter Summary | | Chapter 10 ComMon Acids and Alkalis 10.1 Acids and Alkalis 1. Acids taste sour. Many fruits contain acids. 2. The three mineral acids commonly found in the laboratory are hydrochloric acid‚ sulphuric acid and nitric acid. 3. Alkalis taste bitter and feel soapy or slippery. 4. The common alkalis
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Calculations Mass percent of water in CuSO4·5H2O using experimental data: (mass of water lost / mass of hydrated salt) x 100 (0.658 / 2.009) x 100 = 32.75 % Mass percent of water in CuSO4·5H2O using theoretical data: (90 / 249) x 100 = 36.14 % Percent error using experimental and theoretical mass percentages: (experimental value – theoretical value / theoretical value) x 100 (32.75 – 36.14 / 36.14) x 100 = 9.38 % Average percent water in CuSO4·5H2O using experimental values: (trial 1 % water +
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Gas and Colors! With the variety of chemistry project topics it is often difficult to choose what to do. Let me help you out. You want something that is easy to do‚ is virtually guaranteed to work but that will show the judges away with your incredible chemistry knowledge. This is one of those projects… The project What happens during a chemical reaction? The hypothesis When a chemical reaction happens‚ the original substances change to form different products. The experiments • What a gas
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Chemistry Final Exam Version 10/7/14 Name: Student number: Directions: It is important that you provide answers in your own words. Please focus only on information from the text/eBook to create your own solutions. Please do not use direct information from an outside source (especially copying and pasting from an “answer” website). Use of direct information from an outside source is against school policy. All answers will be checked for plagiarism. Instances of plagiarism can result in
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Alkaline soil is referred to by some gardeners as”sweet soil”. The pH level of alkaline soil is above 7‚ and it usually contains a great deal of sodium‚calcium and magnesium. (1) Alkaline soil occurs in areas with high limestone content‚ easy souble phosphorus and calcium binding‚ formation of insouble calcium salts of phosphorus‚ reducing the effectiveness of phosphorus. Also‚ in calcareous soils‚ boron‚ manganese‚ molydenum‚ zinc‚ iron greatly reduces the effectiveness of the crop often feel inadequate
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