Organic Chemistry II Laboratory (ABCT357/ABCT3757) Lab Manual 2014-2015 Lee Hang Wai‚ Alston (alston.lee@polyu.edu.hk) Dr. Lee Cheng Hao‚ Samuel (chenghao.lee@polyu.edu.hk) Organic Chemistry II Laboratory (ABCT357‚ ABCT3757) (Group one) Contact: Alston Lee (alston.lee@polyu.edu.hk) Tuesday 8:30-11:30 ‚ Laboratory: Y1315 Lab supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt
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Bismuth was discovered in the fifteenth century by a french chemist named Claude Geoffroy the Younger. At first his colleagues thought he was crazy‚ thinking that he had found lead or tin. But Geoffroy had distinguished it as a unique element. The name Bismuth comes from the word Wisuth meaning “white mass”‚ because pure Bismuth is white. When pure bismuth is mixed with lead‚ tin‚iron or cadmium the multi colored Bismuth is created. Bismuth falls under the pnictogen family. This family consists
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1. Which of the following renewable energy would require the use of hazardous materials like inert silicon‚ arsenic and cadmium- solar 2. What is the 5 day BOD of sugar beet factory wastewater? 10000 3. These are organism that returns organic material to inorganic material; completes recycling of atoms. - Decomposer 4. A kind of interaction in which two organisms strives to obtain the same limited resources‚ and in the process both organisms are harmed to some extent. -Competition 5. Which of the
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This paper is about 6 theories of how the world began. This includes: The primordial soup theory‚ the iron-sulfur theory‚ RNA world theory‚ deep sea vent theory‚ community clay theory‚ and the panspermia theory. Each theory is a different hypothesis on how life on earth began throughout the course of over 1‚000 years. 3 ORIGINS OF BIOMOLECULES RESEARCH PAPER Primordial Soup Hypothesis Alexander Oparin (introduced hypothesis) and Robert Shapiro (summarized paper)
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Purpose: a) Determine the melting points of two organic compounds known to have the same melting range when pure. b) Determine the mixture melting point of a mixture of the two pure compounds. c) Identify an unknown organic compound by determining its melting point and mixture melting point. Procedure and Observations: Using the procedure outlined in Appendix A of the Lab Manual‚ approximately equal samples of p-Nitrophenol and acetanilide‚ which are known to have the same melting range
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aerobic biological organisms living in a body of water to break down organic material in a given sample over prescribed conditions. It is a widely used as an indication of the organic quality of water. The BOD value is most commonly expressed in ppm (parts per million) and is often used as a robust surrogate of the degree of organic pollution of water.5 Chemical Oxygen Demand (COD) is very similar to BOD. It also is used to measure organic compounds in water and is a useful measure of water quality. This
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3 Questions I have: ● According to Asimov‚ when do people solve problems or make discoveries‚ and why? ● How does Asimov include the scientific information of Archimedes’ and Kekule’s discoveries necessary to help understand them better? ● What was Asimov’s idea behind “Eureka! Eureka!” and how did it fit into the purpose of the story? In the story The Eureka Phenomenon by Isaac Asimov‚ Asimov includes the scientific information of Archimedes’ and Kekule’s discoveries to help the audience und
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evaporating the weight of crude caffeine was .0321g‚ making the percent recovery before sublimation 1.43%. After sublimation the weight of pure caffeine was .0027g‚ making the percent recovery of caffeine after sublimation .12%. The percent recovery of caffeine is less in the second half of the experiment because the crude caffeine had some impurities in it which were taken out by the process of sublimation. The average cup of black tea has about .014g to .07g of pure caffeine in it (MayoClinic
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methods for synthesizing 2-methyl-1-propanamine in a single synthetic step‚ not counting any workups. 3. Reactions of Amines (15 points). Draw the organic products of the following reactions. Indicate stereochemistry where appropriate. A reasonable answer may be “ No Reaction.” 4. Reactions of Carbonyl Compounds (15 points) Draw the organic products of the following reactions. Indicate stereochemistry where appropriate. A reasonable answer may be “ No Reaction.: 5. Reaction Mechanisms
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The OLED is a solid-state devices composed of thin films of organic molecules that create light with the application of electricity. To compare with LCD system‚ OLED is Thinner‚ Faster‚ More efficient‚ Wider‚ and more Flexible. actually‚ it will be a next generation display and the future’s light source. So to get close with new technology‚ we started on research that. Main purpose is using organic materials to produce the Red‚ Green‚ and Blue OLED‚ and to improve the efficiency. For that we have
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