only react with electrophilic carbons. Figure 1: reduction mechanism for the reaction In this experiment‚ the benzil (diketone) is used as the organic substrate. Sodium borohydride‚ NaBH4 is used as the reducing agent (metal hydride) and ethanol as the solvent. The H- of the NaBH4 reduces one or both carbonyl groups in benzil and then the acidification processes results in a diol or two secondary alcohols as products. If only one carbonyl group is reduced‚ the product results in a racemic
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STERILIZATION AND DISINFECTION Definitions Bacteriostatic Agent: An agent that inhibits the growth of bacteria‚ but does not necessarily kill them. Bactericide: An agent that kills bacteria. Most do not kill Endospores. Sporicide: An agent that kills spores. Definition STERILIZATION The process of freeing an article from microorganisms including their spores. By definition‚ it effects a reduction in the number of microorganisms (more than 99.9999% are killed). Methods
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Johnny Greavu PSTL 1112 Jesse Kroese July 5‚ 2015 Field Report #3 Hyland Lake Park Reserve The 1‚000-acre Hyland Lake Park Reserve‚ in Bloomington‚ features lowland floodplain forest‚ upland hardwood forest‚ prairie‚ oak savanna‚ wetland‚ and aquatic habitats. It is one of 20 parks in the Three Rivers Park District‚ a park and trail system for the suburban Twin Cities. The location used to be a farm‚ but around 1950 was turned into a park. Glacial melting formed the park’s many kettle lakes and
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On the field trip we took on Wednesday I was amazed at the information I learned. When I say it was amazing‚ that means it’s crazy to realize how advance the world is and how many people work to create a more sustainable world in our own backyard. When we first arrived we learned about the history of Argonne and how it came to be. It was pretty cool to learn about it because I myself am majoring in history so it was cool to see the mission and values Argonne was built on. This made me very interested
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Trinity Grammar School Year 12 HSC Chemistry Semester 1 Examination (April‚ 2010) This examination contributes 15% towards your final assessment Time Allowed: 3 hours (plus 5 minutes reading time) Student Number:________________________________________ Format of paper Part A: 20 multiple choice questions (worth 1 mark each). All answers must be entered in the special multiple choice Answer sheet provided. Part B: Free response questions worth 80 marks in total. All answers must be written
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Comparing between the simple and fractional distillation‚ the fractional distillations for both n-propanol and acetone provided a better distillation. The data and graphs support the statement since the fractional graphs provided a steeper slope than the simple distillation. The steeper slope represent how fast the mixture are separated throughout the distillations. For example‚ the simple distillation for acetone the slope initially started at about 20 mL at about 65.5℃ and ended at about 30 mL
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slightly hygroscopic crystalline solid which is Slightly solube in pH 2.3 buffer but partially insoluble in pH 4-7.5 buffers. This is Soluble in ethanol and DMSO but slightly soluble in acetone. Sofosbuvir is a white to off-white non-hygroscopic crystalline solid which is slightly soluble in water (pH1.2-7.7). this is also soluble in ethanol‚ acetone‚ 2-propanol.[4] 3.2 Drug Product: HARVONI is a fixed-dose combination tablet containing ledipasvir and sofosbuvir for oral administration. Ledipasvir is
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com/definitions/hesss-law/244 Author Unknown (n.d) Stoichiometric Combustion‚ retrieved August 23 from http://www.engineeringtoolbox.com/stoichiometric-combustion-d_399.html Dortmund Data Bank Software & Seperation Technology (2009) HFO (Std. Heat of Formation) Data for Propanol‚ Retrieved September 6 from <http://onlinelibrary.wiley.com/doi/10.1002/recl.19700891208/abstract> Jim Clark (2003) Introducing alcohols‚ retrieved August 5 from <http://www.chemguide.co.uk/organicprops/alcohols/background.html> Michael
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Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
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the most rapid bactericidal action of all antiseptics? Alcohol based cleansers have more rapid action than products containing other antiseptics such as; chlorhexidine gluconate or providone iodine. Which alcohol is the most effective? N-propanol Which alcohol is the least
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