1.0 ABSTRACT The production of reducing sugars by acid of carbohydrate cereals powder‚ jams (total sugar content) and jams (reducing sugar content) were performed in order to study reducing sugar production. The study involved hydrolysis carbohydrate cereals powder and jams by immersing in boiling water at environmental temperature. Acid hydrolysis was carried out through reflux boiling for 20 minutes with 10ml 0f 1.5M concentrations of diluted sulphuric acid. Reducing sugars concentrations
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Abstract In the asymmetric synthesis of (S)-Ibuprofen‚ the compound is synthesized in nonracemic form directly from an achiral precursor. First‚ racemic ibuprofen was converted to aN achiral ketene via the acid chloride by adding thionyl chloride followed by triethylamine. Then‚ ketene was reacted with a chiral and nonracemic (S)-ethyl lactate produces a mixture of diasteromeric esters of ibuprofen derivatives where (S) configuration is predominantly. Finally‚ hydrolysis of the ester then provides
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7 properties of Bio 1. Order 2. Reproduction 3. Growth and Development 4. Energy Processing 5. Response to the enverionment 6. Regulation 7. Evolutionary adaptation Biosphree; all of the elements that support lifewater land lower atmosphere madagascar Ecosystem; all organisms living in a particular area. Forrest in Madagascar Community- array of organisms. Birds snakes trees. All organisms in the forest Population- Group of ringtaiiled monkeys ‚ all individuals in a single area
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Figure 1. Examples of functional groups The class of compound is given under each structure; the functional group name‚ if different‚ is in parentheses. H N amine (amino) OH Br alkyl bromide (bromo) alkene (alkenyl) O O H aldehyde ketone (carbonyl) alkyne (alkynyl) O alcohol (hydroxyl) O N C nitrile epoxide ether O OH carboxylic acid (carboxyl) O Cl acyl halide (haloformyl) O O O O O O N H amide (carboxamide) anhydride ester carboxylic acid derivatives
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available in PTA book and Govt exam question paper (upto March 2013) are solved in easiest way. ❆ Repeated practice is enough to get full marks. ❆ Problems are given in the following order 70(a)Hydroxy derivatives (b) d-block elements or (c) Carbonyl compounds (d) Electro chemistry - I www.kalvisolai.com 5 Mark Compulsory Problems with Solution 3 CONTENTS S. No. Lesson Hydroxy Derivatives I. Problems based on primary alcohol II. Problems based on secondary alcohol III. Problems based
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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What’s in a Medicine? (WM) In this document you will find the following material to cover the new AS specification with your students. Notes for students and teachers Revised Chemical Ideas 13.4 part b Answers to problems for 13.4 part b Revised activity WM3 Answers to questions for revised activity WM3 Revised check your notes Revised map of the unit 2 3 6 7 9 10 11 WM © Harcourt Education Ltd 2004 Salters Advanced Chemistry These pages have been downloaded from www.heinemann.co.uk/science 1 Notes
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Introduction: Stillnox has many different names‚ Zolpidem‚ Ambiem and Lorex to name a few. Zolpidem is a prescription drug used for treating insomnia‚ it works quickly (within 15 minutes) and the effects last for around 3 hours (PubChem‚ 2016). As Stillnox is extremely effective in helping insomnia sufferers fall asleep a Stillnox dependence occurs and can often lead to addiction. In extreme circumstances death from overdose of Stillnox has and can occur. This can affect society in a number of different
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1 in vapour state sulphur partly exists as S2 molecule which has 2 unpaired electrons in the antibondind pi orbitals jus lyk oxygen and thus exhibits paramagnetism. 2 An interhalogen compound is a molecule whose atom contains two or more different halogen atoms (fluorine‚ chlorine‚ bromine‚ iodine or astatine). Most interhalogen compounds known are binary (composed of only two distinct elements). Their formulas are generally XYn‚ where n = 1‚ 3‚ 5 or 7‚ and X is the less electronegative
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protons strong bases have a very high concentration of hydroxide buffers: molecules that slow down changes in pH by combining with or releasing H ions normal pH range in blood is 7.35-7.45 functional group: the stuff that hangs off carbon chain O=C carbonyl OH hydroxyl SH sulfhydryl NH2 amino O=C-OH carboxyl OH-O-P-OH-O phosphate condenstation reactions: covalent bond‚ builds a larger molecules from smaller ones‚ output is H2O hydrolysis reactions: ionic or covalent bond‚ splits larger molecules
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