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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The promises of the “American dream” are no longer fulfilled. One does not simply work diligently and expect to achieve success. A number of factors must be taken into consideration: natural talent‚ class‚ and most importantly‚ the ability to assimilate. The American economy today does not allow every citizen to be satisfied with his position. There is a clear distinction between the classes in America. The pursuit of happiness is limited to those who adapt and conform‚ as well as requiring a set
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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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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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People from around the world immigrate to the United States in hopes of finding the Promised Land. Some may define the promise land‚ as a land of freedom‚ a land of abundance‚ a land of peace‚ or a land of education. Most define it as a land of opportunity for a better life. America is a land full of culture and diversity‚ although it is notoriously difficult to characterize “American” culture. Is it possible to move to a land such as America‚ full of culture and diversity‚ and yet preserve your
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Elisa Hofmeister Kokesh Hour 3 AP Chemistry 5-29-12 The Chemistry of Coffee Green Coffee- Before coffee is roasted‚ it is referred to as “green coffee”. The green coffee is primarily made up of caffeine‚ lipids‚ carbohydrates‚ proteins (amino acids)‚ and organic acids (although inorganic acids exist in coffee as well). These groups are quite stable in the green phase‚ and it is the carbohydrates‚ proteins‚ and acids that will undergo significant reactions during roasting to produce coffee
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Queen Wipp Prabhdip Kaur Fiction Semester Project 3 October 2011 A book tells a story and gives you a visual in your head. Perfect chemistry is a story of a boy in a gang and a girl with a perfect reputation. Their attraction to each other comes as a surprise as though a slap to the face. This was something neither on them wanted but when they explored the attraction since they couldn’t keep away from each other‚ they fell in love. The genre of this story is young adult since the story
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i CHAPTER 36: ENVIRONMENTAL CONCERNS LECTURE OUTLINE 36.1 Human Use of Resources A resource is anything from the biotic or abiotic environment that helps meet certain basic human needs. Nonrenewable resources are limited in supply. Renewable resources are not limited in supply. A side effect of resource consumption can be pollution. Land Use Change People need a place to live. Beaches and Human Habitation At least 40% of the world population lives within 100 km of a coastline
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abstracts welfare reform Abstracts for Welfare Reform The state of the social safety net in the post-welfare reform era. Publication: Brookings Papers on Economic Activity Publish date:September 22‚ 2010 Author:Bitler‚ Marianne P.; Hoynes‚ Hilary W. The 1996 welfare reform led to sweeping changes to the central cash safety net program for families with children. Along with
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