...CHM 1101 Introductory Chemistry Dawn Fox Medeba Uzzi August, 2007 Compiled and edited by Medeba Uzzi Authors’ Note This document is an initiative by the authors in an attempt to deal with what they think may be one of the reasons contributing to the relatively high failure rate in the introductory Chemistry course (CHM 1101) at the University of Guyana. It was brought to our attention that many first year students taking CHM 1101 are unable to efficiently cope with the frenetic pace of the Semester system and even less able to deal comprehensively with the large content in CHM 1101. It is hoped that by providing this paper, students will not need to make lots of notes in lectures and so they can focus on grasping the concepts taught. The document is meant to be a guide to the topics covered in CHM 1101 and is by no means exhaustive. Students are still required to attend classes regularly and punctually and to engage meaningfully in lectures and tutorials. Further, supplemental reading of these topics in any good General Chemistry text is expected. Dawn Fox Medeba Uzzi 2 SECTION 1 – Modules A – D: section deals with the foundation for chemistry. It introduces students to matter & its classification, Atom & its structure, Periodic table and chemical rxns. Introduction to Science and Measurement What is Chemistry? – Chemistry is the study of matter and its transformations Natural sciences refer to the systematic study of the natural world (our...
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...Table of Contents Partial table of contents: Carbon Compounds and Chemical Bonds. Representative Carbon Compounds. An Introduction to Organic Reactions: Acids and Bases. Alkanes and Cycloalkanes: Conformations of Molecules. Stereochemistry: Chiral Molecules. Alkenes and Alkynes I: Properties and Synthesis. Alkenes and Alkynes II: Addition Reactions. Radical Reactions. Alcohols and Ethers. Conjugated Unsaturated Systems. Aromatic Compounds. Reactions of Aromatic Compounds. Aldehydes and Ketones I: Nucleophilic Additions to the Carbonyl Group. Aldehydes and Ketones II: Aldol Reactions. Carboxylic Acids and Their Derivatives: Nucleophilic Substitution at the Acyl Carbon. Amines. Carbohydrates. Lipids. Answers to Selected Problems. Glossary. Index. Solomons/Advices ADVICES FOR STUDYING ORGANIC CHEMISTRY 1. Keep up with your studying day to day –– never let yourself get behind, or better yet, be a little ahead of your instructor. Organic chemistry is a course in which one idea almost always builds on another that has gone before. 2. Study materials in small units, and be sure that you understand each new section before you go on to the next. Because of the cumulative nature of organic chemistry, your studying will be much more effective if you take each new idea as it comes and try to understand it completely before you move onto the nest concept. 3. Work all of the in-chapter and assigned problems. 4. Write when you study. over and over again. Write the reactions, mechanisms...
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...Centre for Foundation Studies, UTAR CHAPTER 2 Chemical Bonding Chapter Scopes Bond energies, bond lengths & bond polarities Drawing Lewis structure and calculate the formal charge Forms of Chemical Bonds 1) Intramolecular bond – forces hold the atoms _______ a molecule • Ionic / Electrovalent Bond • Covalent Bond • Metallic Bond 2) Intermolecular bond – forces ________ the molecules • Hydrogen bonding • Van der Waals 3) Co-ordinate / Dative Bond FHSC1114 Physical Chemistry Chapter Scopes • • • • Electrovalent / ionic bonding Covalent bonding Co-ordinate / dative covalent bonding Intermolecular bonding (including hydrogen bonding, Van der Waals) • Metallic bonding • Electronegativity Chemical Bond • Chemical bond − the force of attraction that binds atoms together in a chemical compound • When atoms react to form chemical bonds, only the electrons in the ______ ___________ are involved Electrons In An Atom 2 groups of electrons: a) Valence electrons • outermost shell electrons • chemical properties • = group number in periodic table b) Core electrons • inner shell electrons • not involved in chemical behaviour 1 Centre for Foundation Studies, UTAR Valence & Core Electrons B (1s22s22p1) Core e- = [He] Bond & Lone Pairs Electrons • Valence electrons are distributed as shared (bond pairs) & unshared (lone pairs) Valence e- = 2s22p1 Core e- = [Ar]3d10 Valence e- = 4s24p5 Lewis Symbol & Lewis...
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...Magnetotransport in Modulated Graphene by Rubina Nasir Submitted to the Department of Physics on 25 June 2012, in partial ful…llment of the requirements for the degree of Doctor of Philosophy Abstract Recent experimental as well as theoretical works have shown that it is possible to create periodic, electric as well as magnetic, potentials in graphene. The e¤ects of these potentials on charge carriers in graphene leads to novel physical e¤ects with important consequences for transport. Whereas a strong periodic potential can lead to new Dirac points in the band structure of graphene, a weak periodic potential along with a perpendicular magnetic …eld B introduces a new length scale, period of modulation, in the system in addition to the cyclotron diameter at the Fermi energy. Commensurability of these two length scales leads to new observable physical e¤ects. These e¤ects were observed earlier in transport studies in conventional 2DEG systems realized in semiconductor heterostructures. Our aim is to study these e¤ects in a graphene monolayer in order to highlight the similarities and di¤erences in the two systems, conventional 2DEG and graphene. Therefore, in this thesis we have carried out a detailed investigation of the electrical magnetotransport properties of a one-dimensional weakly modulated graphene monolayer. It is found that the periodic modulation broadens the sharp Landau Levels into bands and they start oscillating with B. The electronic conduction in this system...
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...BANKING ACADEMY OF VIETNAMBTEC HND IN BUSINESS (ACCOUNTING) ASSIGNMENT FRONT SHEET | Qualification | Unit Code / Unit number and title | Pearson BTEC Level 5 HND Diploma in Business (Accounting) | (Y/601/0546)Unit 1 Business Environment | Student name / BTEC Registration Number | Assessor name | Hoang Quang HungHoang Tuan DungDao Tien Hoang | F08-027F08-013F08-024 | Martin Ortega-Azurduy | Date issued | Hand in deadline | Submitted on | TBA | 5/11/2015 | 5/11/2015 | | | Assignment title | Assignment 1 : The Virgin Group and its environment | In this assessment you will have opportunities to provide evidence against the following criteria. Indicate the page numbers where the evidence can be found. | Learning Outcome | Learning outcome | Assessment Criteria | In this assessment you will have the opportunity to present evidence that shows you are able to: | Task no. | Evidence(Page no) | LO1 | Understand the organisational purposes of businesses | 1.1 | Identify the purposes of different types of organisation | 1 | | | | 1.2 | Describe the extent to which an organisation meets the objectives of different stakeholders | 1 | | | | 1.3 | Explain the responsibilities of an organisation and strategies employed to meet them | 1 | | LO2 | Understand the nature of the national environment in which businesses operates | 2.1 | Explain how economic systems attempt to allocate resources effectively | 2 | | | | 2.2 | Assess...
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...Understanding our Chemical World Paul Monk Manchester Metropolitan University, UK Copyright 2004 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to permreq@wiley.co.uk, or faxed to (+44) 1243 770620. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought. Other Wiley Editorial Offices John Wiley & Sons Inc., 111 River Street, Hoboken, NJ 07030, USA ...
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...PHYSIC AL CONSTANTS CONSTANT Speed of light Elementary charge Electron mass Proton mass Gravitational constant Permeability constant Permittivity constant Boltzmann’s constant Universal gas constant Stefan–Boltzmann constant Planck’s constant Avogadro’s number Bohr radius SYMBOL c e me mp G m0 P0 k R s h 15 2p"2 NA a0 THREE-FIGURE VALUE 3.003108 m/s 1.60310219 C 9.11310231 kg 1.67310227 kg 6.67310211 N # m2/kg 2 1.2631026 N/A2 1H/m2 8.85310212 C 2/N # m2 1F/m2 1.38310223 J/K 8.31 J/K # mol 5.6731028 W/m2 # K4 6.63310234 J # s 6.0231023 mol21 5.29310211 m BEST KNOWN VALUE* 299 792 458 m/s (exact) 1.602 176 4871402 310219 C 9.109 382 151452 310231 kg 1.672 621 6371832 310227 kg 6.674 281672 310211 N # m2/kg 2 4p31027 (exact) 1/m0c2 (exact) 1.380 65041242 310223 J/K 8.314 4721152 J/K # mol 5.670 4001402 31028 W/m2 # K4 6.626 068 961332 310234 J # s 6.022 141 791302 31023 mol21 5.291 772 08591362 310211 m *Parentheses indicate uncertainties in last decimal places. Source: U.S. National Institute of Standards and Technology, 2007 values SI PREFIXES POWER 1024 1021 1018 1015 1012 109 106 103 102 101 100 1021 1022 1023 1026 1029 10212 10215 10218 10221 10224 THE GREEK ALPHABET PREFIX yotta zetta exa peta tera giga mega kilo hecto deca — deci centi milli micro nano pico femto atto zepto yocto SYMBOL Y Z E P T G M k h da — d c m μ n p f a z y Alpha ...
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...Overview of the Implementation Status of the Five United Nations Treaties on Outer Space in African Countries J-A. van Wyk Department of Political Sciences, University of South Africa (UNISA), P O Box 392, Pretoria, 0003, South Africa e-mail: vwykjak@unisa.ac.za Abstract. This paper presents an overview of the five major UN Treaties on Outer Space. Each of these Treaties are briefly discussed and assessed with particular emphasis on aspects relevant to Africa. Very few African countries have ratified these Treaties, as well as enacted domestic space legislation. The paper concludes with an assessment of Africa’s involvement in multilateral space fora such as OOSA and UNCOPUOS. It also offers recommendations to improve African countries’ ratification and compliance with these Treaties. Sommaire. Cet article est une introduction aux cinq traités majeurs de l’ONU, en matière d’espace extra-atmosphérique. Chacun des traités est brièvement discuté et évalué en insistant sur les aspects importants pour l’Afrique. Tres peu d’Etats africains ont ratifié ces traités, ainsi que mis sur pied une législation en matière d’espace. L’article se termine par une évaluation de l’engagement de l’Afrique dans des forums multilatéraux voués à l’espace tels que l’ OOSA et l’ UNCOPUOS. Des recommendations sont également suggérées pour l’amélioration de la ratification et le respect par les Etats africains de ces traités. International Space Law: Context and Text fact that no state can claim...
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...ANIMAL PROCEDURES COMMITTEE REVIEW OF COST-BENEFIT ASSESSMENT IN THE USE OF ANIMALS IN RESEARCH JUNE 2003 REPORT OF THE COST-BENEFIT WORKING GROUP OF THE ANIMAL PROCEDURES COMMITTEE PREFACE Letter to the Minister from Michael Banner, Chair of the Animal Procedures Committee 17 June 2003 Dear Ms Flint ANIMAL PROCEDURES COMMITTEE: RECOMMENDATIONS ON COST-BENEFIT ASSESSMENT UNDER THE ANIMALS (SCIENTIFIC PROCEDURES) ACT 1986 On behalf of the Animal Procedures Committee I enclose the Committee’s report on cost-benefit assessment. In it we address the adequacy of the current cost-benefit assessment performed in the course of evaluating project licence applications. We have sought to look at the many issues which arise in relation to this important element of the regulation of the use of animals, but would draw attention to three particular aspects of our work. In the first place we have addressed the fundamental question as to scientific validity of the use of animals. We believe that our considerations and conclusions offer an important clarification of the debate and fulfil the request made by your predecessor, Mike O’Brien, to provide advice on this issue. Secondly, while we conclude that some uses of animals may yield scientific knowledge, we argue that this does not settle the question of justification. We go on to elucidate the full range of factors which must be considered for there to be a rigorous application of the cost-benefit assessment. Thirdly, we also consider how...
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...Traffic Engineering Design This page intentionally left blank Traffic Engineering Design Principles and Practice Second edition Mike Slinn MVA Limited, MVA House, Victoria Way, Woking GU21 1DD, UK Paul Matthews MVA Limited, Third Floor, One Berners Street, London W1T 3LA, UK Peter Guest 8 The Grove, Farnborough, Hampshire GU14 6QR, UK AMSTERDAM • BOSTON • HEIDELBERG • LONDON • NEW YORK • OXFORD PARIS • SAN DIEGO • SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Elsevier Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 30 Corporate Drive, Burlington, MA 01803 First published by Arnold, 1998 Reprinted 2003 Second edition 2005 Copyright © 2005, Elsevier Ltd. All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a license issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1T 4LP. Applications for the copyright holder’s written permission to reproduce any part of this publication should be addressed to the publisher. Permissions may be sought directly from Elsevier’s Science and Technology Rights Department in Oxford, UK: phone: (ϩ44) (0) 1865 843830; fax: (ϩ44) (0) 1865 853333;...
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...1 1 Fundamentals of Semiconductor Electrochemistry and Photoelectrochemistry Krishnan Rajeshwar The University of Texas at Arlington, Arlington, Texas 1.1 1.2 1.3 1.3.1 1.3.2 1.3.3 1.3.4 1.4 1.4.1 1.4.2 1.4.3 1.5 1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.6 1.7 1.7.1 1.7.2 1.7.3 1.7.4 1.7.5 Introduction and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electron Energy Levels in Semiconductors and Energy Band Model . The Semiconductor–Electrolyte Interface at Equilibrium . . . . . . . . The Equilibration Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Depletion Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mapping of the Semiconductor Band-edge Positions Relative to Solution Redox Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Surface States and Other Complications . . . . . . . . . . . . . . . . . . . Charge Transfer Processes in the Dark . . . . . . . . . . . . . . . . . . . . Current-potential Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dark Processes Mediated by Surface States or by Space Charge Layer Recombination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rate-limiting Steps in Charge Transfer Processes in the Dark . . . . . Light Absorption by the Semiconductor Electrode and Carrier Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light Absorption...
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...SENIOR SECONDARY COURSE PHYSICS 1 (CORE MODULES) Coordinators Dr. Oum Prakash Sharma Sh. R.S. Dass NATIONAL INSTITUTE OF OPEN SCHOOLING A-25, INSTITUTIONAL AREA, SECTOR-62, NOIDA-201301 (UP) COURSE DESIGN COMMITTEE CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Maidan Garhi, Delhi MEMBERS Prof. A.R. Verma Former Director, National Physical Laboratory, Delhi, 160, Deepali Enclave Pitampura, Delhi-34 Dr. Naresh Kumar Reader (Rtd.) Deptt. of Physics Hindu College, D.U. Dr. Oum Prakash Sharma Asstt. Director (Academic) NIOS, Delhi Prof. L.S. Kothari Prof. of Physics (Retd.) Delhi University 71, Vaishali, Delhi-11008 Dr. Vajayshree Prof. of Physics IGNOU, Maidan Garhi Delhi Sh. R.S. Dass Vice Principal (Rtd.) BRMVB, Sr. Sec. School Lajpat Nagar, New Delhi-110024 Dr. G.S. Singh Prof. of Physics IIT Roorkee Sh. K.S. Upadhyaya Principal Jawahar Navodaya Vidyalaya Rohilla Mohammadabad (U.P.) Dr. V.B. Bhatia Prof. of Physics (Retd.) Delhi University 215, Sector-21, Faridabad COURSE DEVELOPMENT TEAM CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Delhi MEMBERS Prof. V.B. Bhatia 215, Sector-21, Faridabad Prof. B.B. Tripathi Prof. of Physics (Retd.), IIT Delhi 9-A, Awadhpuri, Sarvodaya Nagar Lucknow-226016 Sh. K.S. Upadhyaya Principal Navodaya Vidyalaya Rohilla Mohammadabad, (U.P.) Dr. V.P. Shrivastava Reader (Physics) D.E.S.M., NCERT, Delhi EDITORS TEAM CHAIRMAN Prof. S.C. Garg Former Pro-Vice Chancellor IGNOU, Delhi MEMBERS Prof. B.B. Tripathi Prof...
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...Ultimately, such sensory discriminations and the vari- Samuel M. McClure,1,2 Jian Li,1 Damon Tomlin, Kim S. Cypert, Latane´ M. Montague, and P. Read Montague* Department of Neuroscience ables that influence them serve to influence expressed Menninger Department of Psychiatry behavioral preferences. Hence, there is another large and Behavioral Sciences piece of the problem to understand. For modern huBaylor College of Medicine mans, behavioral preferences for food and beverages 1 Baylor Plaza are potentially modulated by an enormous number of Houston, Texas 77030 sensory variables, hedonic states, expectations, semantic priming, and social context. This assertion can be illustrated with a quote from Anderson and Sobel (2003) Summary profiling the work of Small et al. (2003) on taste intensity and pleasantness processing: Coca-Cola (Coke) and Pepsi are nearly identical in chemical composition, yet humans routinely display “A salad of perfectly grilled woodsy-flavored calastrong subjective preferences for one or the other. mari paired with subtly bitter pale green leaves of curly endive and succulent petals of tomato flesh in This simple observation raises the important question a deep, rich balsamic dressing. Delicate slices of of how cultural messages combine with content to pan-roasted duck breast saturated with an assertive, shape our perceptions; even to the point of modifying tart-sweet tamarind-infused marinade.” behavioral preferences for a primary...
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...LECTURE NOTES For Nursing Students Human Anatomy and Physiology Nega Assefa Alemaya University Yosief Tsige Jimma University In collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education 2003 Funded under USAID Cooperative Agreement No. 663-A-00-00-0358-00. Produced in collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education. Important Guidelines for Printing and Photocopying Limited permission is granted free of charge to print or photocopy all pages of this publication for educational, not-for-profit use by health care workers, students or faculty. All copies must retain all author credits and copyright notices included in the original document. Under no circumstances is it permissible to sell or distribute on a commercial basis, or to claim authorship of, copies of material reproduced from this publication. ©2003 by Nega Assefa and Yosief Tsige All rights reserved. Except as expressly provided above, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission of the author or authors. This material is intended for educational use only by practicing health care workers or students and faculty...
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...RIGA GRADUATE SCHOOL OF LAW THE IMPLEMENTATION OF INTERNATIONAL STATE RESPONSIBILITY NATIONAL SPACE LEGISLATION IN THE EU (title) INTO MASTER’S THESIS AUTHOR: DMYTRO CHYBISOV LL.M 2007/2008 year student student number LLM00703 JANE SMITH________________ (name, surname) TUTOR: Professor____________________ (academic title) DECLARATION OF HONOUR: I declare that this thesis is my own work, and that all references to, or quotations from, the work of others are fully and correctly cited. (Signed) …………………………………. RIGA, 2008 2 SUMMARY In Part I the general provisions of space treaties and principles of public international law briefly summarized. An overview of “appropriate state”, “launching state” terms and international responsibility and liability issues also discussed there. Part I is supposed to introduce current international legal tools available for the regulation of space activities. It explains what is international space law, why it is important and how does it work. Moreover, certain aspects of legal treatment of governmental and non-governmental entities are comprehensively discussed. The analogy between international space law and maritime law was also reiterated. Part I particularly examines each of three main space treaties and the problematic points arising from their interpretation. The enforcement mechanism is also analyzed. It was the idea to pick up an issue and then to analyze it using the common sense and legal logic with the view...
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