yield of the reaction. The crude product Z-Stilbene was completely favored 100/0 to E-Stilbene as an integration of 10.73 was recorded at 6.6 ppm for Z-Stilbene but no peak was recorded at 7.1 ppm for Z-Stilbene. When Stilbene undergoes photo isomerization it favors almost exclusively E-Stilbene as an integration of 15.14 at 7.1 ppm was observed compared to an integration of 0.89 at 6.6 ppm. This ratio of 94/6 almost completely favors the E product as it is more stable due to its conjugation. In
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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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Introduction: The purpose of this lab is to use staining techniques and biochemical testing to identify an unknown bacteria using Bergey’s manual. Bergey’s manual of Systematic Bacteriology is a dichotomous key primarily used to identify a bacterial species. Biochemical tests are used to differentiate different species of bacteria. These tests are effective in determining the characteristics of the microbe being tested. Such characteristics include citrate utilization‚ gelatin hydrolysis‚ nitrate
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ISOMERIZATION OF AN ALKENE Martin‚ Marilen1‚ Lovenia‚ Melden D.2 1Professor‚ School of Che-Chm-BE-MSE‚ Mapua Institute of Technology; 2Students‚ Chm145L/A41‚ School of Che-Chm-BE-MSE‚ Mapua Institute of Technology ABSTRACT The experiment was conducted to accomplish the following objectives. The first objective aims to synthesize an isomer of alkenes. This was done by converting maleic acid to fumaric acid. This conversion was accomplished by applying a heat-catalyzed reaction on maleic acid
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SBI4U-C 1 Lesson Introducing Biochemistry 1 Lesson 1 Biology SBI4U-C Introduction If you think about it‚ living things are made up of chemicals. The cells‚ tissues‚ organs‚ and organ systems that together make up a functioning organism are all the product of interacting chemicals. In order to understand how the organism functions‚ you must also recognize how these chemicals function. The study of the chemicals that are involved in living things is known as biochemistry
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Chemicals Hordenine and methyl jasmonate were purchased from Tokyo Chemical Industry (Tokyo‚ Japan). Dimethyl sulfoxide (DMSO) was obtained from Sigma-Aldrich (Tokyo‚ Japan). Plant materials Two-year-old seedlings of Vitis vinifera cv. Koshu were cultivated in perlite:vermiculite (1:1) soil in a growth chamber (11.8 Wm-2 for 14 h in a day) at 27 °C. Seedlings of Fragaria×ananassa cv. Nyoho were grown in 55% peat moss‚ 10% perlite‚ 5% vermiculite‚ and 30% decomposed granite soil at 25 ºC in a greenhouse
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bub Weather is the state of the atmosphere at a given time and place‚ with respect to variables such as temperature‚ moisture‚ wind velocity‚ and barometric pressure. Weather can be classified as day to day temperature and precipitation activity‚ where climiate is average atmospheric conditions over longer periods of time. Weather occurs from temperature and moisture differences between one place and another. These differences can occur due to the sun angle at any particular spot. The strong
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Introduction: - It is one of the most famous and celebrated battle in Indian corporate history. Old-world Ballard Estate in Bombay taking on brash new Nariman Point. The ancient regime have argument with the nouveau rich. The Warriors :- Reliance Industries Ltd (RIL) run by Dhirubhai Ambani and Bombay Dyeing Ltd (BDL) led by Nusli Wadia War Reason / Battleground :- Bombay Dyeing was one of the textile kings in the pre-Ambani era‚ and the battle with Ambani began when both looked at the sunrise
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Key Questions Unit Two Lesson Five 91/92= 99 % 15. a) 2‚3‚5-trimethylhexane b)3-ethyl-2‚4‚6‚7-tetramethyloctane c)2‚2-dimethylpentane 6 16. a)3-ethyl-3-methylhexane CH3 | CH3-CH2-CH-CH2-CH2-CH3 | CH2CH3 b) 1-ethyl-3-propylcyclohexane c) 2‚4-dimethylheptane CH3-CH-CH2-CH-CH2-CH2-CH3
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Caring for Your Psoriasis: Self-Care Tips Medicines for psoriasis are often invaluable in controlling symptoms. But there are plenty of natural ways to treat psoriasis‚ too. Try these eight tips to help manage your psoriasis at home. Psoriasis Self-Care Tip 1: Keep Skin Moist Using moisturizer is an important part of self-care for psoriasis. Dry skin makes irritation and itchiness caused by psoriasis worse than it needs to be. A vicious cycle can result: dry skin can cause itching and scratching
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