halogen react with the molecule. E-Stilbene is a hydrocarbon with a double bond and with phenyl groups attached to each side of the double bond in a such a way that the configuration is in the trans formation. Stilbene has two isomers‚ tran stilbene‚ and cis stilbene‚ which is more unstable than trans stilbene. Z-stilbene has a melting point of 5-6 degrees C and E-stilbene has a melating point of 125 degrees C. The bromination of E-stilbene theoretically results in an all meso product. The
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FOOD NUTRITION BASICS LABORATORY REPORT LAB 3 PROTEINS DUE DATE Next FNB Practical NAME (CAPITALS) ______________________________GROUP LETTER___________ This work is the product of my own efforts and has not been copied from any other sources except where full acknowledgement has been given. Signed________________________________________ Student No._____________ Introduction The principle involved in this experiment is denaturation. It involves loss of ordered structure and can be caused by changes
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Ronak Parikh U30682934 Experiment 2: Diels-Alder Reaction: Synthesis of cis-Norbornene-5‚6-endo-dicaroboxylic anhydride Introduction: The main goal of this experiment is to perform a Diels-Alder reaction between 2‚3-dimethyl-1‚3-butadiene and maleic anhydride‚ identify the product and hydrolyze to form the dicarboxylic acid. Diels alder reactions are classified as pericyclic reaction‚ which is a reaction which involves a cyclic rearrangement of bonding electrons‚ which means
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Melting Point Determination and Thermometer Calibration Lab Background: The melting point of a substance‚ a solid in this case‚ signifies the temperature at which the first crystal starts to melt until the temperature at which the last crystal disappears is reached. That being said‚ melting points are expressed in ranges‚ am organic compound will have a sharp range depending on the purity of the compound. Impurity of an organic substance will register an abnormal melting point based on its
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The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye
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Margaret E. Vorndam‚ M.S. Version 42-0038-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable
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Abby Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each
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1 Information Systems in the Workplace CIS/207 10/13/2014 Information Systems2 A business information system is defined by Hooper and Page (1997) as “the sum of all the tools‚ techniques and procedures used by the business to process data”. Information is necessary to get success because it is context formation of data. People use systems to store information. When someone input information in systems‚ it is processed and then the information is output through a process. Information System
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Introduction: In the lab‚ Bromide was combined with trans-cinnamic acid in order to see if the resulting product at the end of the experiment would yield either an erythro- or threo-dibromide. Based on how well this experiment was done there is a possible product that would have a melting point around 95°C‚ threo-‚ 205°C‚ erythro-‚ or somewhere in the middle which would be a combination of the two. The process of refluxing was used to purify the mixture followed by crystallization. In the end
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Conor Westerman LAB 7 1. List whether the student was positive or negative for each characteristic and include whether the characteristic is dominant or recessive. (6 points) a. Blood type A+ b. Widow’s peak yes‚ + c. Free ear lobes yes‚ + d. Tongue rolling yes‚ + e. Hitchhiker’s thumb yes‚ + f. Left thumb dominance yes‚ + g. Little finger bend No‚- h. PTC taster yes‚ + i. Mid-digit hair no‚ - j. Facial dimples yes‚ + k. Freckles no‚ - l. Cleft chin no‚ - (+)=dominant (-)=recessive 2. Can the student
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