examine the extent to which the temperature and presence of common ions affect the amount of copper sulphate salt that can dissolve in 100 grams of water until it reaches saturation. In order to achieve the aims of this experiment‚ a methodical approach is taken to measure solubility of the salt at three different temperatures and then construct a solubility curve for copper sulphate. Additionally‚ copper sulphate is reacted with sodium hydroxide to investigate further the effect of common ions on
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reduction Carbon monoxide (CO) Atmospheric oxidation of methane (plant degradation) CH4 + ½ O2 CO + 2 H2 Natural forest fires Incomplete combustion of fossil fuels C8H18 + 8 ½ O2 8 CO + 9 H2O Forest fires Prevents hemoglobin from carrying oxygen by forming carboxyhemoglobin Headaches Shortness of breath Unconsciousness Death Lean-burn engines decrease fuel-air ratio to 18 CO(g) + O(g) 2 CO2 Catalytic converter which achieve high rate of reaction by using a platinum catalyst‚ heterogeneous
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covering of another metal surface with another metal)‚ and the manufacturing of many kinds of chemicals such as chlorine‚ sodium chloride‚ and bleach. Also‚ electrolysis is used to extract reactive metals such as aluminium and the purification of copper. With these examples‚ we can say that electrolysis has many benefits‚ for example the manufacturing of bleach. Bleach can be used to clean household equipments‚ and to whiten/lighten or clean stains on white cloth. Other than that‚ there
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Chemistry 104: Analysis of Commercial Antacid Tablets Hydrochloric acid (HCl) is one of the substances found in gastric juices secreted by the lining of the stomach. HCl is needed by the enzyme pepsin to catalyze the digestion of proteins in the food we eat. Heartburn is a symptom that results when the stomach produces too much acid (hyperacidity). Antacids are bases used to neutralize the acid that causes heartburn. Despite the many commercial brand‚ almost all antacids act on excess stomach
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Chemistry Ozone Depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth’s stratosphere (the ozone layer)‚ and a much larger springtime decrease in stratospheric ozone over Earth’s polar regions. The latter phenomenon is referred to as theozone hole. In addition to these well-known stratospheric phenomena‚ there are also springtime polartropospheric ozone depletion events. The
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: School Name: KENDRIYA VIDYALAYA‚ BIBROD‚ RATLAM (M.P.) Λαβορατορψ Χερτιφιχατε This is to certify that_____________________________ has satisfactorily completed the course of chemistry investigatory project prescribed by CBSE under the AISSCE course in the year of 2010-11. . Date Signature of Teacher “χκνοωλεδγεμεντ I would like
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special occasions like independence day. The excitement produced by fireworks like ‚ brightening the night sky and plunging it with vivid displays of colour and insignificant‚ which makes them a crowd pleaser. Behind all the excitement of fireworks‚ chemistry plays an important role in creating the vivid colours we witness lighting up the sky. The actual chemical reactions that take place in the explosions require the use of oxidisers‚ reducing agents and binders. The additions of varying metal chlorides
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Presence of oxalate ions in Guava Chemistry Investigatory Project Published by M.A.EBENEZER A chemistry investigatory project on the presence of oxalate ions in guava with all the required sample readings and observations‚ graphic customized and ready to print.( Though you will need to change the credentials.) See More INTRODUCTION Guavas are plants in the Myrtle family (Myrtaceae) genusPsidium (meaning "pomegranate" in Latin)‚ whichcontains about 100 species of tropical shrub
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Jordan Stone IB Math SL Mrs. Wicks G-Force Math Portfolio Introduction: This portfolio will investigate how to create an equation that has a line of best fit for a given set of data. The points given will be plotted to see if there is a recognizable regression formed. In order to find the right regression equation‚ different regression equations will be tested with the data points provided. The process of finding the right equation and the testing of points will be provided. Each set of
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is present in the solution. The solution consists of salt and water only. That is why acid-base titrations are also called neutralization titrations (Sienko and Plane 1957‚ 340-343). Neutralization reactions in experiments: NaOH(aq) + KHP(aq) Na+ + KP- +H2O NaOH(aq) + CH3COOH CH3COO- + Na+ +H2O Infromation - Some indicators (including Phenophthalein) Indicator | pH at which colour changes | Colour at lower pH | Colour at higher pH | Phenolphthalein | 9 | Colourless | Red | Litmus
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