Synthetic fibers are made from synthesized polymers or small molecules. The compounds that are used to make these fibers come from raw materials such as petroleum based chemicals or petrochemicals. These materials are polymerized into a long‚ linear chemical that bond two adjacent carbon atoms. Differing chemical compounds will be used to produce different types of fibers. Although there are several different synthetic fibers‚ they generally have the same common properties. Generally‚ they are known
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BUSA 3270 Professor Marni Brown October 10‚ 2007 Laura Janick Sex Offender Restrictions: Rules They Live Must Follow The Georgia sex offenders laws are unfair and distorted in that they treat all sex offenders equally without considering the sex crime. This problem needs to be addressed because people who are not violent offenders are being treated as such by Georgia laws and Bills such as House Bill 1059. For example‚ I have a good friend on the Georgia sex offender list. He is on the
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EXP-10 CHEM 233L SYNTHESIS OF p-BROMOANILINE Introduction: In this experiment‚ p-bromoaniline was synthesized in three steps starting from aniline. Since the amino group of aniline is a strong activator of aromatic ring‚ direct bromination is impractical (equation 1). In order to make a desired product‚ amino group needed to be protected as the acetamide which also maintained ortho and para position but slowed down the rate of reaction (equation 2). Slow reaction rate would increase
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balloons were used to supply H2 gas to the flask. The reaction mixture was stirred for 15 h under hydrogen atmosphere at room temperature. Ethyl acetate was added to the reaction mixture and the Pd/C was removed by filtration. Solvent was removed in vacuo to afford 3-perylenepentanol as yellow solid. Yield (0.43 g‚ 134 %). Rf 0.49 (hexane : ethyl acetate‚ 1 : 1). δH (500 MHz‚ CDCl3) 1.08 - 1.27 (2 H‚ m‚ 3’-CH2)‚ 1.50 (3 H‚ br s‚ 2’-CH2) ‚ 1.86 - 2.02 (2 H‚ m‚ 4’-CH2) ‚ 2.66 (1 H‚ br t‚ J = 6.3 Hz
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also contains thymol‚ a powerful substance which is also a monoterpene phenol and is a natural fungicide with antiseptic properties. Esters are also strong antifungal agents‚ and two of these are abundant in oregano oil‚ namely linalyl acetate and geranyl acetate. Together‚ these substances make oregano oil a great natural alternative to treat infections. These substances also made the researchers see the potential of oregano oil as a possible
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Joanne Kathleen Saori T. Suzuki‚ Laurent Santos‚ Val Justin D.M. Tongco* College of Science‚ University of Santo Tomas‚ Manila Philippines Abstract Salivary amylase‚ found in humans‚ is enzyme that catalyzes the hydrolysis of starch into simpler compounds. Its enzymatic activity is affected by several factors‚ such as temperature and pH. The rates of enzymatic activity of salivary amylase in different temperatures and pH were measured and resulted to be very near 50 C and 7 respectively. However
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PbCl2(s) + 2 K+ + 2 NO3- 2. Solutions of sodium sulfate and calcium bromide are mixed. Na2SO4(aq) + CaBr2(aq) CaSO4(s) + 2 NaBr(aq) 2 Na+ + SO42- + Ca2+ + 2 Br- CaSO4(s) + 2 Na+ + 2 Br- 3. Solutions of aluminum acetate and lithium hydroxide are mixed. Al(C2H3O2)3(aq) + 3 LiOH(aq) Al(OH)3(s) + 3 LiC2H3O2(aq) Al3+ + 3 C2H3O2- + 3 Li+ + 3 OH- Al(OH)3(s) + 3 Li+ + 3 C2H3O2- 4. Solutions of iron(III) sulfate and sodium sulfide are mixed
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Name: Ana Cecilia Alcalá Bolio Registration: 2693441 Course title: Chemistry II Teacher’s name: Hugo Skyol Pliego Cortes Module: 1. Hydrocarbons in life. Activity: Homework 3 Date: January 30‚ 2013 Team: Doesn’t apply. Bibliography: Universidad TecMilenio. BlackBoard. Topic 3. http://bbsistema.tecmilenio.edu.mx/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_109276_1%26url%3D Wikipedia.org. “Ethane” (2012)
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needed to perform this experiment. I will need three round flower pots 1 inch in diameter and height. I will be using ¼ cup of ammonium sulphate fertilizer and ½ cup of sodium chloride concentrations salt‚ rock salt (halite)‚ and calcium magnesium acetate salt (Peeples‚ 1990). The last and final ingredient I will need is three different types of grass sod‚ St. Augustine grass‚ Bahia grass‚ and Buffalo grass cut in 5 inches in a square diameter. All three flower pots will be deep freezes to duplicate
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SIBULO‚ MONIQUE STACY JANE B. 2012-1-1433 17 SEPTEMBER 2013 1. The function of a neuron is to convey or process signals. Discuss how the specific parts of a neuron allow this general function to occur. Neurons has four distinct zones that has each of their specialization in the transmission of signals across the body. The first zone is for signal reception‚ it consists the dendrites and the cell body. The dendrites receive the signals and be converted into electrical signals that will be
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