Organic Chemistry II Lab Diels Alder Reaction Purpose: In this experiment a Diels-Alder reaction was used to form the products. Cyclopentadiene and maleic anhydride were reacted together to form cis-Norbornene-5‚6-endo-dicarboxylic anhydride. 7-oxabicyclo{2.2.1}hept-5-ene-2‚3-dicarboxylic anhydride was also produced through a Diels-Alder reaction with the combination of furan and maleic anhydride. Equation: Procedure: Part 1 In a flask equipped with
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different pH buffers to amylase affect the rate of starch digestion measured using starch and iodine? Introduction Amylase is an enzyme found in human saliva and pancreas. It is the digestive enzyme that is needed to breakdown starch molecules. Amylase must be kept at certain conditions to function at its optimum level. This experiment will explore the effect of pH (1‚ 4‚ 7‚ 10‚ and 14) on the function of amylase by using starch and iodine. Usually iodine has a orange-yellow color‚ but iodine
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ab: Observing a Chemical Reaction Name: Deja Eason Period: 5th Period Partners: Melingh Patterson‚ Tori Millens Date Performed: 9/2/11 Teacher: Mrs. Medina Abstract: This experiment was all about observing a chemical reaction. During the experiment‚ we made observations and possible explanations on why Copper(II)Chloride Dehydrate and Aluminum foil created a chemical reaction. The observations were made by using Copper Chloride‚ Aluminum foil‚ and Distilled water. Before the Aluminum
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the U.S should stop making pennies. Pennies just cost to much to make‚ and they waste our time counting them over counters and at food service windows. Also‚ other countries have banned the penny and so should we. The penny costs more than its worth. Even though‚ pennies aren’t worth that much‚ the money wasted to produce them can add up to millions of dollars over time. It costs 2.4 cents to produce a single one cent coin.(Story) Taxpayers lose money every time a penny is made. It may not seem like
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JC Penny On April 14‚ 1902 James Cash Penney the founder and two partners opened the Golden Rule dry-goods store in the small town of Kenner‚ Wyoming. In 1907 Penney bought out his original partners and took on new ones‚ beginning with Earl Corder Sams. When the firm was incorporated on January 17‚ 1913 as JC Penny Stores Company‚ there were 34 stores in the American West. Penney then moved the company’s main headquarters to New York. Today Penny’s is engaged in marketing apparel‚ home furnishings
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also briefed on how PR works in the business industry. As an intern with such tasks‚ they say that I work well under pressure and the quality of work I have produced are good enough to be shared online and to their Board of Trustees. I am hoping to be a part of your company because I know that I will learn from you as well as contribute to the company’s future. I would like to start my career in Public Relations because‚ based from what I have heard from my professors is that PR is one of the highest
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truss becomes internally statically indeterminate. In this case the truss is termed statically overdeterminate. The SE 110.22 experimental set-up permits investigation and comparison of statically determinate and statically indeterminate trusses. Using the bars and node discs‚ a statically determinate‚ single plane truss is first constructed. On installation of a surplus bar the truss becomes overdeterminate. By way of a load application device‚ straight or inclined forces are applied to the truss
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order of their densities? 6. How did the Earth’s 3 internal layers originate? Where did the heat required for the layers to develop come from? 7. Which of the following physical properties of mineral are strongly affected by the mineral’s chemical composition? By the crystal structure? luster‚ streak‚ density‚ hardness‚ crystal form‚ cleavage 8. Define luster‚ streak‚ density‚ hardness‚ crystal form‚ cleavage. 9. Differentiate between: a. Silicates and non-silicates. b. Ferromagnesian and Non-ferromagnesian
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orientation‚ and reproductive. Orientation is when the organism is placed in their beneficial environment consisting of two behaviors‚ taxis (movement directly towards or away something) and kinesis (random movement). Reproductive is detected using drosophila in this lab‚ it consists of finding courting and mating with another of the species Agnostic behavior is found in a situation where the animal feels threated by another‚ leading to the organism looking bigger or more threatening to the opponent.
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TITLE OF EXPERIMENT 2 : DILUTION 2.1: OBJECTIVES Upon completion of this experiment‚ students should be able to: 1. determine the concentration of coloured solution such as FeCl3 by using dilution and colour differentiating (colorimetric) techniques. 2.2: INTRODUCTION Concentration can be expressed in many different ways such as percentage volume and percentage weight etc. In laboratory‚ normally concentrations were expressed as molarity and normality. Molarity is the
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