FACULTY OF SCIENCE SCHOOL OF CHEMISTRY CHEM1011 CHEMISTRY A

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1 FACULTY OF SCIENCE SCHOOL OF CHEMISTRY CHEM1011 CHEMISTRY A SEMESTER 2, 2014

2 Table of Contents 1. Information about the Course Staff Involved in the Course Course Details Rationale and Strategies Underpinning the Course Course Schedule Assessment Tasks and Feedback Additional Resources and Support Required Equipment, Training and Enabling Skills Course Evaluation and Development Administration Matters UNSW Academic Honesty and Plagiarism

3 Faculty of Science - Course Outline 1. Information about the Course NB: Some of this information is available on the UNSW Handbook 1 Year of Delivery Course Code Course Name Academic Unit Level of Course Units of Credit Session(s) Offered Assumed Knowledge, Prerequisites or Corequisites Hours per Week Number of Weeks Commencement Date 2014 CHEM1011 Chemistry A School of Chemistry Level 1 6UOC S1 & S2 Assumed knowledge: chemistry to year 11 HSC, or equivalent. 6 HPW 12 weeks in 13 weeks pattern. S2: Week 1, Tuesday 29 Jul Summary of Course Structure (for details see 'Course Schedule') Component HPW Time Day Location Lectures 3 Lecture am Tue Science Th Lecture 2 5-6pm Wed Burrows Th Lecture pm Fri CLB 7 Laboratory 2 As enrolled. As enrolled. As enrolled. Tutorials 1 As enrolled. As enrolled. As enrolled. TOTAL 6 Individual lecturers will present an overview of the course, and will give more specific solutions to selected problems in class. Students are expected to attempt tutorial questions before each class. Special Details Tutors will cover selected tut questions, with regard to students difficulties. Some examination questions may be drawn from tutorial questions. 2. Staff Involved in the Course Staff Role Name Contact Details Consultation Times Course Convenor Dr Luke Hunter Dalton Building, Room 130, Tel: firstyearchem@unsw.edu.au Student Support Manager Additional Teaching Staff Lecturers & Facilitators Tutors & Demonstrators Technical & Laboratory Staff Mr Steve Yannoulatos A/Prof John Stride Dr William Donald Dr Steve Colbran To be allocated Mr Michael McMahon Dalton Building, Room 104, Tel: firstyearchem@unsw.edu.au J.Stride@unsw.edu.au Dalton 131, Tel: W.Donald@unsw.edu.au Dalton 221, Tel: S.Colbran@unsw.edu.au Dalton 225, Tel: Contact in tutorials, labs. ChemSci 133, Tel UNSW Online Handbook: 2

4 3. Course Details Course Description 2 (Handbook Entry) This course builds on an elementary knowledge of chemistry (equivalent to one year of high school chemistry, such as Year 11 chemistry, or CHEM1001 at UNSW) to explore the quantum mechanical structure of atoms leading to an understanding of the periodic trends in the properties of the elements. This knowledge is applied to understanding chemical bonding and intermolecular forces which together are responsible for determining the properties of materials. General principles of chemical equilibrium are developed and applied to chemical reactions involving acids and bases. The applications of the laws of Thermodynamics to chemical processes are described and ultimately linked to chemical equilibrium. The course concludes with an overview of chemical reactions involving electron transfer, including their applications in biology, corrosion and energy storage for portable electronic devices. Course Aims 3 Student Learning Outcomes 4 CHEM1011, Chemistry A, aims to give a basic understanding of the principles of chemistry that underlie the behaviour of matter. It builds on the chemical knowledge gained at High School, the Chemistry Bridging Course, or in CHEM1001. The course seeks to provide a basic understanding of atoms and molecules, introduces chemical naming, introduces the mole concept and ideas of solution concentrations, explores the basic types of chemical reactions and provides some models for understanding structures of molecules, and how structure relates to bonding and bulk properties. The course also treats phases and solution behaviour, equilibrium and redox reactions. Thermochemistry is also important, examining heat, enthalpy, entropy, Hess Law, free energy, and its relationship to equilibrium position, and to the potential of electrochemical and electrolytic cells. At a successful completion of this course the student should have: A strong grounding in the language of chemistry, including symbols, formulae, equations, solution concentrations and mole calculations. An understanding of the properties of gases and ability to perform calculations for gas reactions and manipulations. an understanding of the origins and characteristics of the types of chemical bonding, and the molecular and non-molecular structures that arise from bonding. an understanding of how molecular structure determines the types and strengths of intermolecular forces, and the resultant bulk physical properties. Wide-ranging methods of understanding and quantifying chemical species in chemical equilibria: for acids, bases, buffers, salts, solutes, and metal complexes - including interactions between these types of equilibria. A comprehensive thermochemical knowledge, by examining enthalpy, entropy, free energy, and their relationships to equilibrium position, and to the potential of electrochemical and electrolytic cells. an understanding of electrochemical cells, redox reactions and their importance to corrosion, batteries and electrochemical industry. From the lab component, the student should have gained experience in the conduct of laboratory experiments, the treatment of data and report preparation. Graduate Attributes Developed in this Course 5 Science Graduate Attributes 5 Research, inquiry and analytical thinking abilities Capability and motivation for intellectual development Ethical, social and professional understanding Communication Teamwork, collaborative Select the level of FOCUS 0 = NO FOCUS 1 = MINIMAL 2 = MINOR 3 = MAJOR Activities / Assessment 3 Emphasised throughout course, particularly through means of practical skills gained during the Laboratory work. Critical assessment of practical reports 2 Students are encouraged to be enquiring in Lecture, Tutorial and Laboratory classes. 3 Emphasised throughout course, particularly at each submission of a laboratory report. 2 Discussion of lab techniques with demonstrator. Write-up of practicals and constructive assessment of practical reports. 3 Laboratory work is directed mainly to the development of individual skills, although some experiments develop teamwork skills. 2 UNSW Handbook: 3 Learning and Teaching Unit: Course Outlines 4 Learning and Teaching Unit: Learning Outcomes 5 Contextualised Science Graduate Attributes 3

5 and management skills Information literacy 1 Attention is drawn to instances of relevant chemistry-related articles in the news media. 4

6 Major Topics (Syllabus Outline) Atoms and their structure. Nomenclature of simple organic and inorganic ions. Stoichiometry and balancing equations Mole Concept. Solution Stoichiometry Empirical vs Molecular formula; Percentage composition by mass. Common reagents and their reactions (acids, bases (Bronsted), oxides, carbonates). Gases: properties, diffusion. Ideal gas law; determination of molar mass; density. Gas mixtures: partial pressures, Dalton's law. Atomic spectroscopy, Hydrogen spectrum, Rydberg equation. Quantum mechanical principles and the quantum mechanical model of the atom. Orbitals and quantum numbers from the Schrödinger equation. Electronic configurations of atoms; Pauli exclusion principle, Hund's rule. Electronic configurations and the periodic table. Configurations of ions. Diamagnetic and paramagnetic species. Isoelectronic species. Periodicity of atomic and ionic sizes, ionization energies and electron affinities. Introduction to bonding: electronegativity and bond polarity. Bond types (metallic, ionic, covalent). Lewis diagrams; electron deficient & expanded valence shell species Lewis Structures Resonance structures; formal charges. VSEPR theory and molecular shape; polarity of molecules. Valence bond theory, hydridized orbitals. Sigma and pi bonds, multiple bonds. Delocalisation. Intermolecular forces: dipole dipole, dispersion forces, hydrogen bonds. Deviations from ideal gas laws; van der Waals equation; a and b constants. States of matter: Comparison of properties of solids, liquids and gases; Solids - types (atomic, molecular, ionic, metallic, network); crystalline vs amorphous.liquids - general description; viscosity and surface tension. Properties of solutions: energy changes on dissolution, solubility, 'like dissolves like', Raoult's law, ideal and non ideal solutions; positive and negative deviations from Raoult's law. Distillation. Equilibrium: Definition of K; K for combinations of reactions. Le Chatelier s principle. General calculations using K; use of approximations to simplify algebra; Acid/base (definitions; Lewis, Bronsted), ph, poh, Kw, pkw; strong acid and base solutions; Ka, Kb; pka, pkb ph of weak acid and base solutions, hydrolysis of salts, buffers. Acid-base titrations. Thermodynamics: System and surroundings. Heat and heat capacity; endothermic and exothermic processes. Internal energy, work and the First law. Enthalpy, qp, and qv; internal energy change and enthalpy change. Calorimetry. Standard enthalpies of sublimation, fusion, vaporization. Hess law, enthalpies of formation, enthalpy changes for chemical reactions, enthalpy of combustion. Enthalpy of atomization, ionization enthalpy; electron affinity; bond energy; lattice enthalpy; Entropy. Entropy changes for phase transitions and chemical reactions. Definition of Gibbs energy, Gibbs energy changes for chemical reactions, relation to equilibrium, temperature dependence of the equilibrium constant K. Redox reactions and electrochemistry: Definitions (oxidation, reduction, oxidising agent, reducing agent) oxidation numbers, balancing ion-electron half equations. Standard potentials; galvanic cells, types of electrodes; hydrogen electrode; electrochemical cells; cell diagrams; cell notation; cell potential; Batteries, Nernst equation; cell potentials and equilibrium constants; Electrolysis; corrosion and corrosion prevention. Relationship to Other Courses within the Program This Course develops the knowledge of physical & general chemistry at first year level. It is a prerequisite for CHEM1021 Chemistry B. 4. Rationale and Strategies Underpinning the Course Teaching Strategies Examples from chemical practice allow Contextualising 6. Students become more engaged in the learning process if they can see the relevance of their studies to professional, disciplinary and/or personal contexts. We also have undertaken Designing to 10. Clearly articulated expectations, goals, learning outcomes, and course requirements increase student motivation and improve learning. 12. Graduate attributes - the qualities and skills the university hopes its students will develop as a result of their university studies are most effectively acquired in a disciplinary context. Teaching in the use of laboratory groups supports 14. Learning cooperatively with peers rather than in an individualistic or competitive way may help students to develop interpersonal, professional, and cognitive skills to a higher level. Rationale for learning and teaching in this course 6, Chemistry is an experimental science, requiring the development of both practical skills in the Laboratory and an intellectual understanding. The integration of lectures, tutorials and laboratories supports Engaging 1. Effective learning is supported when students are actively engaged in the learning process. 2. Effective learning is supported by a climate of inquiry where students feel appropriately challenged and activities are linked to research and scholarship. 6 Reflecting on your teaching 5

7 5. Course Schedule Some of this information is available on the Online Handbook 7 and the UNSW Timetable 8. Week Lectures (day), Tutorials (day), Practical (day), Topics & Lecturers Topics & Lecturers Topics & Lecturers Week 1 Introduction, Dr Stride - Other (computer assignment) Assignment and Submission dates (see also 'Assessment Tasks & Feedback') Week 2 Introduction & Gases Dr Stride Set 1 See laboratory Week 3 Atomic Spectroscopy Dr Stride Set 2 See laboratory Week 4 Bonding, Dr Donald Set 3 See laboratory Week 5 Bonding, Dr Donald Set 4 See laboratory Week 6 * Bonding, Dr Donald Set 5 See laboratory Week 7 Bonding, Dr Donald Set 6 See laboratory Week 8 Equilibrium, Dr Colbran Set 7 See laboratory Week 9 Equilibrium, Dr Colbran Set 8 See laboratory Week 10 Thermodynamics, Dr Colbran Set 9 See laboratory Week 11 Thermodynamics, Dr Colbran Set 10 See laboratory Week 12 Redox, Dr Colbran Set 11 See laboratory Assignment 1 Assignment 2 Assignment 3 Assignment 4 Assignment 5 Assignment 6 Assignment 7 Assignment 8 Assignment 9 Assignment 10 Assignment 11 Week 13 Redox, Dr Colbran Set 12 None (makeup lab) Assignment 12 - Diagnostic Test feedback. In-lab feedback by demonstrator, and marked lab reports returned to student. Mid-semester test feedback. The changeover form one lecture/tutorial topic to the next may vary from the timing shown. *NB: As stated in the UNSW Assessment Policy: one or more tasks should be set, submitted, marked and returned to students by the mid-point of a course, or no later than the end of Week 6 of a 12-week session' 7 UNSW Virtual Handbook: 8 UNSW Timetable: 6

8 6. Assessment Tasks and Feedback Task Knowledge & abilities assessed Assessment Criteria % of total mark Date of Feedback Release Submission WHO WHEN HOW Laboratory work: individual practical reports Weekly computer assignment Mid-semester test. Final examination Ability to use practical Laboratory knowledge and to develop skills Knowledge gained in previous week s lectures; abilities to calculate & reason. Ability to use lecture and tutorial material in problem solving Overall level of attainment of knowledge and problemsolving skills in the whole Course Marks for experimental results as presented. Additional marks for answering the specific Task questions for each experiment. Three attempts per test, awarded one mark for at least one perfect score. Marks for problem solving as presented. Graded marking for solution method, and for final answer. Multiple-choice section marked right or wrong. 20 Week Week 2-13 Work is either marked in lab, or a report is submitted for marking. weekly Assigned lab demonstrator. Automated computer response. During and at end of lab for inlab marking; according to schedule in lab for submitted reports. After each attempt. 10 Week 6 Week 6 Dr Luke Hunter Week following the test 60 October October UNSW Exams November Branch Comments and marks, written on report, and verbal advice. Score and comments are returned. Mark returned via Moodle. Final mark for Course is awarded In order to pass the course, students need to satisfy ALL of the following criteria: A total mark of 50% or higher Laboratory attendance of 80% or higher Final examination mark of 35% or higher Supplementary examinations MAY be offered, at the sole discretion of the course coordinator, for academic or other reasons. Supplementary examinations are typically held as soon as possible after the exam period; students are expected to make themselves available for these should they require them. 7

9 7. Additional Resources and Support Text Books Course Manual Blackman, A., Bottle, S., Schmid, S., Mocerino, M., and Wille. U, Chemistry, John Wiley and Sons, 2 nd Edn Aylward, G.H. and Findlay, T.J.V. SI Chemical Data, (6th ed., or later). Availability bookshop; UNSW library (Closed Reserve); or by online purchase: A printed copy of the CHEM1011/CHEM1031/CHEM1051 Course Pack (2013) is required. Electronic version available on Moodle. Required Readings Additional Readings Recommended Internet Sites CHEM1011 Moodle site for course information, assessment schedule, syllabus, lecture notes and course materials, Lectopia recorded lectures, past tests and exams and solutions, revision exercises, reaction summary etc. The UNSW School of Chemistry website contains direct links to many important chemistry-related websites and databases. Societies UNSW Students of Chemistry Society (SOCS) UNSW) UNSW Chemical Society Royal Australian Chemical Institute Computer Laboratories or Study Spaces Laboratory Chemical Sciences Building 133 Gibson Computer laboratory Ground floor, Dalton Building Chemistry Study Area Ground floor Dalton Building 8. Required Equipment, Training and Enabling Skills Laboratory coat, ASAapproved safety eyewear, sensible clothing, and enclosed footwear, are required in all School of Chemistry laboratories. Laboratory coat, ASA-approved safety eyewear, sensible clothing, and enclosed footwear, are required in all School of Chemistry laboratories. Compulsory computerdelivered Safety & Ethics exercise completed in Gibson Computer laboratory before the first Laboratory Session. All students must complete a chemical safety pre-lab exercise before each lab. Compulsory computer-delivered Safety & Ethics exercise completed in Gibson Computer laboratory before the first Laboratory Session. All students must complete a chemical safety pre-lab exercise before each lab. 8

10 9. Course Evaluation and Development Student feedback is gathered periodically by various means. Such feedback is considered carefully with a view to acting on it constructively wherever possible. This course outline conveys how feedback has helped to shape and develop this course. Mechanisms of Review Last Review Date Comments or Changes Resulting from Reviews Major Course Review 2011 Major reorganisation of content distribution between CHEM1011/CHEM1021 and CHEM1031/CHEM1041 pairs, and content alignment of CHEM1011 with CHEM1031 enhanced to facilitate movement between these courses on basis of the Diagnostic Test in Week 3. CATEI 9 CATEI feedback is incorporated into the course review process in a continuous manner. Other 9 CATEI process 9

11 10. Administration Matters Expectations of Students Assignment Submissions Occupational Health and Safety 10 Assessment Procedures UNSW Assessment Policy 11 Equity and Diversity Students are expected to attend all lectures; the UNSW requirement is at least 80%. Attendance at Laboratory Classes is compulsory and a roll is kept. Students who miss labs need to register for makeup labs. See the laboratory for full details. Pre-laboratory reading and work is expected to take minutes per week (including safety matters) and post-laboratory write-up is expected to take 1-2 hours per week. Laboratory reports designated to be submitted should be submitted to in the pigeonhole mailboxes, according to the schedule in the laboratory. A signed cover sheet must be attached to the front of each lab report submitted. Cover sheets are supplied printed in the lab, as the first page of each lab report to be submitted. Information on relevant Occupational Health and Safety policies and expectations at UNSW: To be admitted to a laboratory, you must wear ASA-approved safety eyewear, a lab. coat and covered shoes (no thongs, open sandals or clogs). You must also complete all safety pre-lab. work, or other prescribed preparation relating to carrying out safe laboratory work. Visitors are not allowed to undergraduate laboratories without the permission of the laboratory supervisor. If late or non-submissions of work are due to health problems they must be documented with a medical certificate. A makeup lab needs to be done to replace a lab absence; provision of a medical certificate does not cancel a lab absence. Those students who have a disability that requires some adjustment in their teaching or learning environment are encouraged to discuss their study needs with the course Convenor prior to, or at the commencement of, their course, or with the Equity Officer (Disability) in the Equity and Diversity Unit ( or ). Issues to be discussed may include access to materials, signers or note-takers, the provision of services and additional exam and assessment arrangements. Early notification is essential to enable any necessary adjustments to be made. Information on designing courses and course outlines that take into account the needs of students with disabilities can be found at: Student Complaint School Contact Faculty Contact University Contact Procedure 12 Dr Gavin Edwards Associate Dean (Undergraduate Programs) G.Edwards@unsw.edu.au Tel: A/Prof Julian Cox Associate Dean (Education) julian.cox@unsw.edu.au Tel: or Dr Gavin Edwards Associate Dean (Undergraduate Programs) G.Edwards@unsw.edu.au Tel: Student Conduct and Appeals Officer (SCAO) within the Office of the Pro-Vice- Chancellor (Students) and Registrar. Telephone , studentcomplaints@unsw.edu. au University Counselling and Psychological Services 13 Tel: UNSW OHS Home page 11 UNSW Assessment Policy 12 UNSW Student Complaint Procedure 13 University Counselling and Psychological Services 10

12 11. UNSW Academic Honesty and Plagiarism What is Plagiarism? Plagiarism is the presentation of the thoughts or work of another as one s own. *Examples include: direct duplication of the thoughts or work of another, including by copying material, ideas or concepts from a book, article, report or other written document (whether published or unpublished), composition, artwork, design, drawing, circuitry, computer program or software, web site, Internet, other electronic resource, or another person s assignment without appropriate acknowledgement; paraphrasing another person s work with very minor changes keeping the meaning, form and/or progression of ideas of the original; piecing together sections of the work of others into a new whole; presenting an assessment item as independent work when it has been produced in whole or part in collusion with other people, for example, another student or a tutor; and claiming credit for a proportion a work contributed to a group assessment item that is greater than that actually contributed. For the purposes of this policy, submitting an assessment item that has already been submitted for academic credit elsewhere may be considered plagiarism. Knowingly permitting your work to be copied by another student may also be considered to be plagiarism. Note that an assessment item produced in oral, not written, form, or involving live presentation, may similarly contain plagiarised material. The inclusion of the thoughts or work of another with attribution appropriate to the academic discipline does not amount to plagiarism. The Learning Centre website is main repository for resources for staff and students on plagiarism and academic honesty. These resources can be located via: The Learning Centre also provides substantial educational written materials, workshops, and tutorials to aid students, for example, in: correct referencing practices; paraphrasing, summarising, essay writing, and time management; appropriate use of, and attribution for, a range of materials including text, images, formulae and concepts. Individual assistance is available on request from The Learning Centre. Students are also reminded that careful time management is an important part of study and one of the identified causes of plagiarism is poor time management. Students should allow sufficient time for research, drafting, and the proper referencing of sources in preparing all assessment items. * Based on that proposed to the University of Newcastle by the St James Ethics Centre. Used with kind permission from the University of Newcastle Adapted with kind permission from the University of Melbourne 11