|Acid and Base Ionization Constants | | | |Acid Ionization Constant (Ka) - the equilibrium constant for a weak acid. | |Acid Ionization Constants
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Answers to Questions 1. For solutes that are dissolved because of intermolecular attractions with the solvent‚ state the intermolecular attractions involved. Intermolecular Attractions F There are dipole-dipole attractions and hydrogen bonding between polar acetone and polar water. J There are dipole-dipole attractions and hydrogen bonding between ethanol and water. There are also dipole-dipole attractions between ethanol and diethyl ether. L There are hydrogen bonding‚ dipole-induced
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reactivities of different substituted benzenes towards bromination will be determined‚ where bromine is dissolved in acetic acid. Materials and apparatus Test solutions: 0.2 M solutions in ethyl acetate: Benzene‚ chlorobenzene‚ phenol‚ nitrophenol‚ aniline and acetanilide. Measuring pipettes (5 mL) micro test tubes 0.05 M Br2 in 90% CH3COOH Pasteur pipettes 0.05 M Br2 in cyclohexane II. Schematic Diagram of the Procedure Relative Rates of Bromination Add
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Unit 2 – Disposition of Toxicants Ch 5 – Absorption‚ Distribution‚ and Excretion of Toxicants Ch 7 - Toxicokinetics Chapter 5 Absorptions‚ Distribution‚ and Excretion of Toxicants © The McGraw-Hill Companies‚ Inc‚ 2011 Factors Affecting Disposition • If fraction absorbed or rate absorbed is low‚ may never reach high enough concentration to cause toxicity • Concentrated in a tissue other than the target organ‚ thus decreasing toxicity • Biotransformation may result in formation of less toxic
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CHEMISTRY (Theory) Time allowed : 3 hours General Instructions: (i) All questions are compulsory. Maximum Marks : 70 (ii) Marks for each question are indicated against it. (iii) Question numbers 1 to 8 are very short-answer questions and carry 1 mark each. (iv) Question numbers 9 to 18 are short-answer questions and carry 2 marks each. (v) Question numbers 19 to 27 are also short-answer questions and carry 3 marks each. (vi) Question numbers 28 to 30 are long-answer questions and carry 5 marks
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matter (15%) 4.1. Thorough explanation of subject matter (5) 4.2. Ability to answer questions (5) 4.3. Only relevant topics discussed/included (5) 5. Grammar (20%) 5.1. Organization of thoughts (5) 5.2. Coherence of paragraph (5) 5.3. Tenses‚ preparation (grammar) (2.5) 5.4. Syntax/Choice of words (2.5) 5.5. Sentences translated in the way it is understood (5) 6. Promptness of submitting report (5%) 6.1. Main criteria written on a ¼ sheet of paper attached to hard copy of report (2.5) 6.2
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Clothing is a big part of Mexico’s culture. Before the U.S influenced Mexico’s clothing‚ it was unique and everyone had there own style. Traditions influence what clothing is to be worn such as during celebrations many important pieces are worn. Celebrations including birthdays‚ weddings‚ and parties men commonly wear Sombreros. A traditional garment that women wear is a Huipil. A Huipil is a cotton blouse that usually has a floral print embroidered on it and is wide with a low cut frame. A type
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FILIPINO CHEMISTS 1.) William Padolina William Padolina‚ Secretary of the Department of Science and Technology‚ is a man of exceptional vision who sees clearly the whole socio-economic panorama unfolding and understands the implications of the crests and troughs in the pre- millenium landscape. The contributions of William Padolina in chemistry include research into the derivatives of coconut fatty acids. He is also well known for his many awards and years teaching. 2.) Clara-Lim Sylianco
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derived from it. [E] Steel is less expensive to manufacture than iron. [C] steel. [C] demolished and replaced with new highways. [B] There were more efficient‚ powerful engines. [E] all of these [C] transcontinental railroads. [D] taconite. [E] aniline dyes. [B] Steel produces more pollution when manufactured. [D] Steel is easier to manufacture. 6. The chemical dye industry hurt tropical nations such as India because [A] of those nations’ textile industries. [B] Indians and other tropical peoples
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111–112(0)‚ 641-648. Kim‚ K.-H. & Ihm‚ S.-K. (2011). Heterogeneous catalytic wet air oxidation of refractory organic pollutants in industrial wastewaters: A review. Journal of Hazardous Materials‚ 186(1)‚ 16-34. Kim‚ S. C. & Lee‚ D. K. (2004). Preparation of Al–Cu pillared clay catalysts for the catalytic wet oxidation of reactive dyes. Catalysis Today‚ 97(2–3)‚ 153-158. Kim‚ S. M. & Vogelpohl‚ A. (1998). Degradation of organic pollutants by the photo Fenton-process. Chem. Eng. Technol.‚ 21‚
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