Name Naza Moore ID# 24120389 Lab# 2 Lab instructors Alecia Palmer and Donald Burke Course Instructor Maureen Wilson Lab Title Preparation of cyclohexene from cyclohexanol Aim Preparation of an Alkene by dehydration of an alcohol in the presence of a catalyst. Calculate the percentage recovery of products. Test for purity and identification of products. Abstract Cyclohexene and cyclohexanol are both colourless aromatic compounds. The major difference between the two is the presence
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amount of each substance. Balancing a chemical equation refers to establishing the mathematical relationship between the quantity of reactants and products. The quantities are expressed as grams or moles. Balancing equations is a fundamental skill in Chemistry. Steps in balancing equation: 1. Write the unbalanced equation. Chemical formulas of reactants are listed on the lefthand side of the equation. Products are listed on the righthand side of the equation. Reactants and products are separated by putting
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continuously collecting data/Mobile network- collect when you want Ambient standards – allowed concentration of CO2 in air Emission standards – requirement that set specific limit to amount of pollution Methyl Bromine part of Vienna Convention for protection of Ozone Layer CFC also bad for ozone layer Health care waste‚ PCBs
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Anthony Martinez Mr. Hruby Chemistry R Period 4(5A) Name & Symbol: Platinum (Pt) Properties: -Atomic Number: 78 -Atomic Mass: 195.084 amu -Appearance: Shiny‚ smooth surface‚ silver like‚ solid. Melting point (K): 2045 Boiling point (K): 4100 Valence electrons: (+1)‚ +2‚ (+3)‚ +4‚ +6 Atomic radius (pm): 139 1st Ionization energy (kJ/mol): 868.1 Electronegativity: 2.28 Natural Occurring Isotopes: Six stable isotopes of platinum occur in nature (190‚ 192‚ 194
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Soluble | Phosphate PO 3-4Carbonate CO 2-3Sulfite‚ SO 2-3 | H | Soluble | Once you recorded all of the data‚ there were a few questions that needed to be answered. A. Compare your results with the solubility rules and/or solubility table in your chemistry text. I would say that my results turned out pretty close to the rules in the text book. I observed many different reactions occurring. The colors of the solutions changed from clear to purple‚ from clear to blue and yellow‚ and from clear to a milky
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Environmental Values University of Phoenix Environmental Issues and Ethics SCI/362 April 21‚ 2008 Environmental Values Finding an answer to the growing problem of the degeneration of the forests‚ ecosystems and environments can be looked at in three different approaches: ecofeminism‚ pluralism or pragmatism. Whether ecofeminism‚ pluralism‚ or pragmatism offer the correct path to reaching the resolution to environmental degradation‚ therein lays an answer; however‚ how does
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Prayoon‚ Prasart Nuangchalerm‚ 2011. Effects of Environmental Ethics Infusion Instruction on Knowledge and Ethics of Undergraduate Students. Research Journal of Environmental Sciences 5 (1): 73-77. It’s not easy to define what environmental literacy is‚ but based on discussions of (Schneider‚ 1997) and (Bobick‚ 2001)‚ we can say that environmental literacy is the capability for a contextual and detailed understanding of an environmental problem in order to enable analysis‚ synthesis‚ evaluation
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CHEMISTRY PROJECT INVESTIGATORY PROJECT ON: CAFFINE CONTENT OF TEA About caffeine: Caffeine is a naturally-occurring stimulant‚ found in several plants. Caffeine is water soluble‚ and is extracted into the brewed cup when preparing tea‚ coffee‚ or other caffeinated drinks. The most well-known plants containing caffeine are the tea plant‚ Camellia sinensis‚ coffee‚ yerba maté‚ and guayusa. Although tea is known to have a number of health benefits‚ heavy caffeine use is known to have unpleasant
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Major: Environmental Engineering We humans have a long history of polluting our air‚ water‚ and soil. This contamination not only hurts nature‚ but is dangerous to people. Luckily‚ environmental engineers are on the job. They use math and science to clean up the messes we’ve made and prevent new ones from happening. For example‚ they might figure out how to clean up toxic material that has seeped into the ground at an old gas station or design an effective way to treat wastewater. If you choose
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Standardize a solution of potassium manganate(VII) by an iron (II) salt (ammonium iron (II) sulphate) Introduction Oxidation numbers describe the number of electrons the atom will gain or lose during a reaction. Each atom in an equation can be assigned an oxidation number according to certain rules. If the oxidation number of an atom increases as you go from the left side to the right side if an equation‚ oxidation has occurred (electrons have been lost); if the oxidation number decreases
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