Organometallic preparation and addition to carbonyls‚ Wittig reagent preparation and Wittig rxn‚ Wolff‚ H-based nucleophile carbonyl reduction‚ imine formation‚ reductive amination (rxn only)‚ ketal/acetal formation‚ dithiane chemistry (rxn only)‚ alpha-bromination of ketones‚ -COOH properties (the trends on HW4)‚ Fischer‚ acidic/basic hydrolysis of esters/amides/nitriles‚ CH2N2‚ acid chloride formation (rxn only)‚ acid chloride rxns with esters and amides. 2 Rxn of carboxyllic acid derivatives
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purified dry ore‚ called alumina‚ is aluminium oxide (Al2O3). The alumina must be molten for electrolysis to work‚ since the ions are not free to move in the solid state. Unfortunately‚ alumina has a high melting point (2040 °C) and it is not practical to do electrolysis at such a high temperature. In the middle of the nineteenth century it was found that alumina dissolved in cryolite. Cryolite is sodium aluminium fluoride (Na3AlF6). A solution of alumina in cryolite melts at about 900 °C and electrolysis
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This is important for the students to appreciate the knowledge of chemistry that is still new for themselves. Personally‚ I think that this chapter is an interesting chapter as it revealed the way of scientist produces the material around me. It also gives me new knowledge of the uses of chemical substances that I usually found in the laboratories. I hope‚ by learning this chapter‚ I will be more interested in learning chemistry as it will help me in the future. All the equations from this chapter
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|Faculty of Engineering & Science | |Unit Code |: |UEMK1013 | |Course |: |Chemical Engineering | |Unit Title |: |Chemistry for Engineering | |Year/ Semester |: |Year 1/ Trimester 1 | |Lecturer |: |Dr. Loh Han Chern | |Session |: |201101
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economist‚ that economics is “a study of mankind in the ordinary business of life; it examines that part of individual and social action which is most closely connected with the attainment and with the use of the material requisites of wellbeing.” In other words‚ it also means that economics is a study of how in our daily lives certain actions or decisions are related to the acquisition and usage of material requirements in our daily routines. Additionally‚ economics is the study of how scarce or limited
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How much control do we truly have over our own life? Are we without control and left at the whim of others‚ luck‚ or a higher power? Or can we take control of our fate and go down the path we desire? Our locus of control is the extent at which we believe we have power over events in our lives (Fournier‚ 2010). People may range from low to high; those who feel as though they are in control have high internal locus of control while those who believe that events occur due to an external force have high
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CHEM 301 LECTURE Unit 1 0 . COORDINATION CHEMISTRY Factors t hat affect solubility: Common ion: decrease in solubility Complex ion: increase in solubility How does complex ion formation increase solubility? Consider the complex ion formation between silver and ammonia: + Ag + 2NH3 A g(NH3 )2 + Kf = 1 .5 x 10 7 where Kf i s the formation constant (always >1 ‚ formation of the complex is highly favorable) Complex ion formation increases the solubility of sol ids in water
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Topic 6 Microscopic World II Unit 23 Shapes of molecules Unit 24 Bond polarity and intermolecular forces Key C o ncepts Microscopic World II Shapes of molecules • Covalent molecules with non-octet structures • Shapes of molecules • The VSEPR theory • Molecular crystals of buckminsterfullerene (C60) • Carbon nanotubes Bond polarity and intermolecular forces • Electronegativity and bond polarity • Van der Waals’ forces • Factors affecting the strength
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Why we plant trees Contents passionate about trees Tree Appeal The Tree Appeal Mission Green Apple Award “Green Heroes” 2006 Executive Summary The Cause The need for more trees Why plant trees? Tree planting partners What Government says The UK Biodiversity Action Plan The importance of biodiversity Implementation EU biodiversity strategy Publications Government Strategy Challenges and opportunities Environmental sustainability Biodiversity Landscape Social sustainability Public access to
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INTRODUCTION Why Do We Need Motivation ? " People don ’t change their behavior unless it makes a difference for them to do so." ~ Fran Tarkenton The most difficult job that faces a supervisor is learning how to effectively motivate and keep his/her employees motivated . The average person when asked how to motivate someone will tell you what motivates him or her. Unfortunately‚ everyone is different and what motivates one employee may only make another employee angry. The method we use to motivate
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