Oxidation Number When elements combine to produce a compound‚ each element is assigned an “apparent” charge. This apparent charge‚ the charge an atom would have if both electrons in each bond were assigned to the more electronegative element‚ may be positive or negative. It is called the oxidation number or state of the element in the compound. Oxidation numbers are very useful in keeping track of what happens to electrons when various elements combine to form compounds. By remembering a few
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Oxidation of an Alcohol: Oxidizing Methoxybenzyl Alcohol to Methoxybenzaldehyde Using Phase-Transfer Catalysis PURPOSE OF THE EXPERIMENT Oxidize methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques
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Crossword Puzzles: A Debatable Future Crossword puzzles have enjoyed over a century of success‚ but their place in society over the next century is in question. The crossword puzzle is an early 20th century game and it hasn’t changed much since then‚ which is a good thing‚ because people don’t want it to. However‚ the way it is promoted needs to be changed. Back when everybody read the newspaper‚ the crossword puzzle was easily accessible. Since the rise of the Internet‚ the readership of news publications
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Cataloging-in-Publication Data Mandell‚ Muriel. Fantastic book of logic puzzles. Includes index. Summary: A collection of seventy illustrated logic puzzles set in fantastic locales such as outer space or mythical kingdoms‚ with explanations of the logical reasoning needed to solve them. Includes charts‚ grids‚ diagrams‚ and a section of clues to consult before resorting to the answer section. 1. Puzzles—Juvenile literature. 2. Logic— Juvenile literature. [1. Puzzles. 2. Logic] I. Chanowitz‚ Elise‚ ill. II. Title. GV1493
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Solving Sudoku Puzzles Tom Kigezi Department of Electrical and Computer Engineering‚ Makerere University‚ Kampala‚ Uganda Abstract— Sudoku‚ the logic based combinatorial numberplacement puzzle has gained worldwide fame among mathematicians and scientists alike in the field of Computational Game Theory. Notably‚ a vast majority of computer-based algorithms available for solving these puzzles try to mimic human logic in their implementation‚ making them liable to errors from puzzle inconsistencies
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Bleach Oxidation of 9-Hydroxyfluorene The purpose of this experiment was to oxidize an alcohol (9-hydroxyfluorene) to a ketone (9-fluorenone) using aqueous sodium hypochlorite (bleach) as the oxidizing agent‚ while introducing techniques used in microscale experiments. Reaction: Results 1. Recrystallized Product Yield Product yield = (actual yield/theoretical yield) x 100% 3mL 9-hydroxyfluorene x (1mL/1000mL) x (0.09 mol/L) = 2.7 x 10-4 moles 0.05g 9-fluorenone / (180.20g/mol) = 2.77 x 10-4
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TITLE The Effects of Mind Puzzle Games to Nonverbal Reasoning Ability among College Students. HYPOTHESIS Mind puzzle games has no significant effect to nonverbal reasoning ability of college students. CONTROL VARIABLE: Educational Attainment RANDOM VARIABLE: Gender and Age INDEPENDENT VARIABLE: Mind Puzzle Games DEPENDENT VARIABLE: Nonverbal Reasoning Ability BACKGROUND OF THE TOPIC Nonverbal tasks involve skills such as: ability to recognize visual sequences
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Experiment 39 Oxidation – Reduction Titrations II : Analysis of Bleach A. Standardization of 0.05 M Na2S2O3 Solution KIO3 concentration 0.01 M Volume of KIO3 Trial #1 Trial #2 Final burette reading 15.01 mL 30.00 mL Initial burette reading 0.00 mL 15.01 mL Milliliters of KIO3 used 15.01 mL 14.99 mL Volume of Na2S2O3 Trial #1 Trial #2 Final burette reading 13.40 mL 25.78 mL Initial burette reading 0.03 mL 13.37 mL Milliliters of Na2S2O3 used
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The Rise of the Androids: An Online Interactive Puzzle Game Domingo‚ Ladylyn A. Juntila‚ Paulyn M. Introduction A game is a form of recreational activity that a person engages in for refreshment. Games vary according to their nature‚ mode of play and objective. Games are played either physically or virtually‚ nonetheless both provide physical and mental development to the player as frequency of play increases. Games tend to bring the players into instances they have never been before; as such
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YOUR NAME: Erin Alston‚ Kennedy Stuart‚ Amber Lamb and Stephonya Williams EXPERIMENT TITLE: Oxidation: Cyclohexanone from Cyclohexanol by Hypochlorite Oxidation and Adipic Acid from Cyclohexanone DATE: 4/18/2014 INTRODUCTION: In experiment 4‚ alcohol is oxidized to a ketone with household bleach. The product is then isolated by steam distillation and is extracted into the distillate with ether. After the removal of ether‚ it leaves the product cyclohexanone. In experiment 6‚ cyclohexanone is
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