Chemistry 266 Dominick Armstrong 10/10/2012 Acid-Base Titration Introduction Acid and bases are two important classes of compounds that react to form a salt and water. When mixing acids and bases a precise amount of the base must be added in order to reach the equivalence point. At this point‚ one reactant has been exactly consumed by the addition of the other reactant. When performing chemical reactions chemist use a process called titration to determine the equivalence point of the
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The Chemistry in Chili For my 2018 Chef Speciality project I will be explaining the chemistry included while cooking chili. Chili is a commonly cooked and served dish and is widely enjoyed across the whole nation. The chili recipe that I will be using includes 2lbs of extra lean ground turkey‚ ½ cup of chopped onions‚ 1 tbsp. Garlic powder‚ 3 oz of diced green chilies‚ 10 oz of can tri- bean blend (drained)‚ 10 oz can organic black beans (Drained) 10 oz of organic diced tomato‚ 1 tbsp. Xylitol
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CM5121 Graduate Organic Chemistry General Administration Matters Dr. Zhang Sheng Office no: S7-03-12 Email: chmzs@nus.edu.sg CM5121 Assessments CA (quiz‚ project) 50% Final Exam (Closed Book) 50% CA: choose 2 out of 3 Quiz 1 (Week 7‚ closed book) 25% Quiz 2 (Week 11‚ closed book) 25% Project Presentation 25% (Week 11-13) 2 Syllabus Broadly divided into 2 parts: 1) Pericyclic Reactions i) Electrocyclic ii) Cycloaddition and cycloreversion iii) Sigmatropic 2) Rearrangements
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and teaching – across the whole spectrum of higher education disciplines - to examine a par¬ticular type of course: the workshop or intensive short course. It will pro¬vide a case study of what we refer to as the learning and teaching genre of ’designing’‚ and offers the opportunity to address a wide range of the broad design issues arising from the matrix. Indeed‚ the rather unique qualities of the workshop/short-course design raises course design in a manner which will permit us to explore just
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Chemistry and Society Jessica Yadira Lopez CHM/110 November 10‚ 2014 Jennifer Cruz Chemistry and Society Chemistry plays a huge and important role in society; Society depends on the accuracy and precision of measurements for products sold by the retail industry‚ such as a gallon of gasoline‚ a bushel of corn‚ or a liter of bottled water. These measurements have to be precise and accurate when it this relates to how farmers sell their products such as wheat‚ corn‚ milk‚ peanuts‚ and cotton‚ by
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Part 1 A） Chemist 1: New product development This career role involves the development of new paints to meet changing market needs. The chemist would be working as a member of a team developing and testing new colloidal paints to suit specific purposes. This might include weatherproof paints‚ which retain their colour and are resistant to solar radiation‚ or indoor paints that can be easily and repeatedly washed. Chemist 2: Environmental monitoring This career role as a public servant could
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you accurately weigh your sample of acid and titrate to a phenolphthalein (colorless to pink color) end point using an accurately known dilute solution of sodium hydroxide (0.1000 M). If your unknown is soluble in a greater than 50% ethanol/water mixture‚ then use bromothymol blue as the indicator to give a yellow to blue color change. Using an analytical balance‚ accurately weigh out approximately 0.2 g of your unknown acid (measured to 0.001g) and dissolve in 50 – 100mL of water. It may be necessary
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CHM 256: BASIC ANALYTICAL CHEMISTRY TUTORIAL 1: INTRODUCTION: ANALYTICAL CHEMISTRY 1. What is chemical analysis? 2. Differentiate between qualitative and quantitative analysis (Oct 2008‚ 2009‚ Dec 2009‚ Apr 2010) 3. Give 7 steps in performing any chemical analysis (Apr 2010) 4. Briefly explain how to prepare the following solutions: a) 1.0 L 10.50 % (w/v) aqueous CH3CH2CH2OH (answer : 105 g) (Oct 2006‚ Oct 2007‚ Oct 2008) b) 500 mL 2.0 M H2SO4 from a commercial reagent‚ at 90% (w/w) purity
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Semester II Course Code and Title: CHEM1901 - INTRODUCTORY CHEMISTRY A Date: Duration: Time: 2 Hours. Paper No: 1 Materials required: Answer booklet: Calculator: (where applicable) Multiple Choice answer sheets: Programmable □ □ numerical □ Normal Special Not required □ Non Programmable □ 1-20 □ 1-100 □ alphabetical Auxiliary/Other material(s) – Please specify: CHEMISTRY ANSWER BOOKLET Candidates are permitted to bring the following
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ST ANDREW’S JUNIOR COLLEGE JC 2 Preliminary Examination CHEMISTRY 9647/03 Higher 2 13 September 2010 Paper 3 Free Response 2 hours Candidates answer on separate paper. Additional Materials: Answer paper‚ Graph Paper‚ Data Booklet READ THESE INSTRUCTIONS FIRST Write your name and civics group on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a soft pencil for any diagrams‚ graphs or rough working. Do not use staples‚
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