Naphthalene Ball in Water Objective: In this experiment‚ we will determine if the naphthalene can be dissolve in water or not. And what will happen in the filter paper if we stick it in the funnel and let it absorbed the fumes in the boiling water with powdered naphthalene. Materials: Evaporating dish Spatula Watch Glass Filter paper Tripod Mortar and pestle Alcohol Lamp Funnel Beaker Data: Naphthalene 1. white crystalline compound 2. has a strong odor 3. round
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(4000 to 5000 Å) than white light‚ and so the solution looks blue. When ammonia is added to a solution of copper(II) cation‚ a deep blue color is formed immediately. The blue color is due to the complex. ion Cu(NH3)42+. Cu(H2O)42+ + 4NH3 Cu(NH3)42+ + 4H2O This complex ion‚ the tetraamminecopper(II) cation‚ has a square co-planar geometry also. The absorption spectrum of this complex ion in 0.05M ammonia is shown in Figure 1 as the solid line‚ B. In this complex‚ also‚ the light
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Blanchisseusse and Maracas‚ thus identifying the impact of water quality due to human activity. The abiotic factors that were investigated are: Carbon Dioxide; Dissolved Oxygen; Total Dissolved Solids; Phosphates; Nitrates; Nitrites; pH; Temperature; Ammonia; Salinity; Alkalinity; Acidity. This study is important to improve our understanding of the relationship between patterns of water quality and environmental variables. Methods of Data Collection The investigation was carried out on Saturday 12th
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Cuprammonium Rayon threads from Filter Paper AAKASH NARAYAN XII-B DON BOSCO SCHOOL i.n.d.e.x 1. Objective 2. Certificate 3. Acknowledgement 4. Apparatus 5. Chemicals 6. Summary 7. Introduction 8. Procedure 9. Precautions 10. Bibliography o.b.j.e.c.t.i.v.e To make Cuprammonium Rayon Threads From Filter Paper c.e.r.t.i.f.i.c.a.t.e This is
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What is Chemical and Process Engineering? The branch of Engineering which is concerned with processes in which materials undergo a required change in composition‚ energy content or physical state at a reasonable cost and in the safest possible manner. History of Chemical Engineering For all intents and purposes the chemical engineering profession began in 1888. While‚ the term "chemical engineer" had been floating around technical circles throughout the 1880’s‚ there was no formal education
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The Nitrogen Cycle The Nitrogen cycle is the exchange of nitrogen gas in the earth’s atmosphere and living organism’s. Nitrogen is a necessity to all living organisms in their production of proteins‚ DNA‚ and RNA in their cells . However‚ only a few organisms can use this gas directly‚ due to the fact that it may limit the growth of plants. Nitrogen takes up about 78% of the earth’s atmosphere. The nitrogen cycle has three main chemical transformations‚ including nitrogen fixation‚ nitrification
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1112 June 23‚ 2015 Video Response #2: King Corn 1) The US planted 91.6 million acres of corn in 2014. This is down 4% from 2013‚ and the lowest acreage since 2010‚ but still the fifth largest since 1944. About 40% of this was used for ethanol production‚ 36% was fed to livestock‚ 20% was exported‚ and only 4% was eaten by humans (much of this being high-fructose corn syrup). 2) Row crops leave much of the soil (gaps between rows) bare and loose‚ which allows for runoff and the topsoil erosion
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chloride and ammonia can be used to explain it. In aqueous solution‚ hydrogen which is an acid reacts with ammonia‚ a base to form a solution of the salt: ammonium chloride. According to Arrhenius the reaction occurs between the H+ ions formed due to the ionisation of the HCl when it dissolved in water. The OH- ion is also formed when ammonia dissolves in water. NH3 + H2O NH4 + OH- HCl + H2O Cl- + H2O- However‚ the reaction between ammonia and hydrogen
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(Vinegar) * Lactic acid (in buttermilk) * Tartaric acid (Tamarind) * Oxalic acid (Tomatoes) Commonly found bases in laboratories and in our daily life are: Caustic soda‚ NaOH; Caustic potash‚ KOH; Milk of magnesia‚ Mg(OH)2; Liquor ammonia‚ NH3; Washing powder‚ Tooth paste. One can familiarize with the acid base nature of some of the common substances by using litmus solution. Activity : Make solutions of the following substances: ’Borax’‚ ’Blood’‚ ’Milk’‚ ’caustic soda’‚ ’Lemon
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acid 9.1.1 Properties of sulphuric acid 9.1.2 The uses of sulphuric acid 9.1.3 The industrial process in manufacture of sulphuric acid 9.1.4 Environmental pollution by sulphuric acid 9.2 Ammonia and its salt 9.2.1 Properties of ammonia 9.2.2 The uses of ammonia 9.2.3 The industrial process in manufacture of ammonia 9.3 Alloys 9.3.1 Physical properties of pure metals 9.3.2 Meaning and purpose of making alloys 9.4 Synthetic polymers 9.4.1 The meaning and types of polymers 9.4.2 Advantages of synthetic
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