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VCE Chemistry Units 3 and 4

By Stacy Carter,2014-05-07 11:05
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VCE Chemistry Units 3 and 4

    VCE CHEMISTRY

    UNITS 3 AND 4: 20082011

    Relationship between the key knowledge of the

    20002007 study design and the 2008 study design

The following table provides a comparison of the key knowledge in the VCE Chemistry Study

    Design Units 3 and 4: 20082011 with the Units 3 and 4: 20002007 study design.

    VCE Chemistry Study Design Units 3 and 4: 20082011 has undergone significant change in content and structure:

    ? The fundamental principles and concepts of chemistry have been maintained. However,

    the emphasis is on developing student knowledge and understanding of these principles

    and concepts and how these are applied to existing areas and the newer/emerging areas of

    chemistry, rather than studying specified examples.

    ? Several areas of study have ‘disappeared’ as separate entities but some of the key

    knowledge from these areas has been retained and included elsewhere.

    ? There is flexibility of choice built into each unit where teachers can select a context

    and/or a particular type of assessment task.

    ? Many of the practical activities associated are still relevant to the reaccredited study

    design.

    ? The recommended amount of time to be spent on student laboratory/practical work has

    been clarified (10 to 15 hours of laboratory/practical work per unit).

    ? The assessment tasks reflect the updated Rationale and Aims as there are tasks in each

    unit that have a strong experimental basis and encourage the use of information and

    communications technology (ICT).

    ? The requirements for the extended experimental investigation and a summary report

    including annotations of three practical activities have been made more explicit.

    ? A Glossary has been included on pages 3031. ? The four key ideas that flow through each unit are structure and bonding, reactions,

    energy and tools chemists use.

    Note: The VCE Chemistry Study Design Units 3 and 4: 20082011 contains a set of key skills (page 12) applicable to all units. The emphasis on key skills such as the development and

    application of safe and responsible work practices, disposal of wastes, the use of Material

    Safety Data Sheets (MSDS) and the ethics of scientific research has been increased.

VCE CHEMISTRY UNITS 3 AND 4: 20082011 MAPPING OF KEY KNOWLEDGE

2008 study design

    20002007 Units 3 and 4 study design

    Unit 3: Chemical pathways Key knowledge

    Area of Study 1 ? volumetric analysis: simple and back titrations, acid-base and Chemical analysis redox titrations;

Outcome 1 ? gravimetric analysis;

    Evaluate the suitability of techniques

    and instruments used in chemical ? calculations including amount of solids, liquids and gases;

    analyses. concentration; volume, pressure and temperature of gases;

    ? use of oxidation numbers to write redox equations;

     Unit 3 Area of Study 1

    New: thin layer chromatography (TLC) ? principles and applications of chromatographic techniques and

    New: infrared spectroscopy (IR); nuclear magnetic interpretation of qualitative and quantitative data from thin

    resonance (NMR) layer chromatography (TLC), high performance liquid

    chromatography (HPLC) and gas chromatography (GC);

     ? principles and applications of spectroscopic techniques and

    interpretation of qualitative and quantitative data from atomic

    absorption spectroscopy (AAS), infrared spectroscopy (IR),

    mass spectroscopy, nuclear magnetic resonance (NMR), and

    visible and ultraviolet spectroscopy (visible-UV);

    ? matching analytical technique/s to a particular task.

?VCAA 2007 2

VCE CHEMISTRY UNITS 3 AND 4: 20082011 MAPPING OF KEY KNOWLEDGE

2008 study design

    20002007 Units 3 and 4 study design Unit 3: Chemical pathways Key knowledge

Area of Study 2 Unit 3 Area of Study 3 ? structure and systematic nomenclature of alkanes, alkenes,

    Organic chemical pathways amines, chloroalkanes, alkanols and carboxylic acids up to C 10;

Outcome 2 Note the use of the term alkanols (Refer to FAQs ? common reactions of organic compounds: addition reactions of

    Identify and explain the role of October 2006 VCAA Bulletin VCE, VCAL and VET, alkenes, substitution reactions of alkanes and primary

    functional groups in organic reactions page 10, for further clarification). chloroalkanes, oxidation of primary alkanols, esterification;

    and construct reaction pathways using

    organic molecules. ? principles of fractional distillation;

     Unit 3 Area of Study 3 and Unit 4 Area of Study 2 ? organic reaction pathways including the production of esters

    Note the use of the term biomolecules. from alkenes, condensation and polymerisation reactions that

     produce large biomolecules;

    Note the revised focus on structure. ? primary, secondary and tertiary structure of proteins and the

    function of protein catalysts (enzymes);

     New ? biochemical fuels including the fermentation of sugars to

    produce ethanol;

     New: forensic analysis ? the structure and bonding of DNA and its applications in

    forensic analysis;

     New ? use of proteins as markers for disease;

     New ? function of organic molecules in the design and synthesis of

    medicines including the production of aspirin from salicylic

    acid.

    Note: The extended experimental investigation can be drawn from either Area of study 1 or Area of study 2; a written report on one practical activity and one task selected from a list (VCE Chemistry Study Design Units 3 and 4: 20082011 pages 2223) must be completed from the area of study NOT used for the extended experimental investigation.

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VCE CHEMISTRY UNITS 3 AND 4: 20082011 MAPPING OF KEY KNOWLEDGE

2008 study design

    20002007 Units 3 and 4 study design

    Unit 4: Chemistry at work 20082011 Units 3 and 4 study design

    Area of Study 1 ? collision theory and factors that affect the rate of a reaction Unit 3 Area of Study 2 Industrial chemistry Note the inclusion of factors that affect the rate of a including activation energy;

     reaction.

    Outcome 1 Analyse the factors that determine the Note the revised focus on energy profile (refer to ? energy profile diagrams and the use of ?H notation;

    optimum conditions used in the FAQs April 2007 VCAA Bulletin VCE, VCAL and

    industrial production of the selected VET pages 89). ? reversible reactions: homogeneous equilibria and the

    chemical. equilibrium law, Le Chatelier’s Principle and factors that affect

    (The list of chemicals is on page 25 of the position of equilibrium;

    the study design.)

    ? pH as a measure of the strength of acids and bases; K, K, for wa

    weak acids;

    New: inclusion of waste management ? principles of waste management used in the chemical industry;

    Unit 3 Area of Study 3 ? the industrial production of the selected chemical

    Note the choice of one chemical from a list of four factors affecting the production including rate and

    chemicals (refer to page 25 of Units 3 and 4 2008equilibrium position, catalysts, temperature, pressure

    2011 study design). waste management including generation, treatment and

    Note the specific inclusion of waste management. reduction

    Note the specific inclusion of health and safety. health and safety

     use of the selected chemical.

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VCE CHEMISTRY UNITS 3 AND 4: 20082011 MAPPING OF KEY KNOWLEDGE

    2008 study design

    20002007 Units 3 and 4 study design

    Unit 4: Chemistry at work 20082011 Units 3 and 4 study design

    Unit 4 Area of Study 1 Area of Study 2 ? comparison of energy sources: types, uses and sustainability of

    Supplying and using energy New the inclusion of biochemical fuels. sources including brown coal, natural gas, nuclear fission and

     biochemical fuels;

    Outcome 2

    Analyse chemical and energy ? application of calorimetry to measure energy changes in

    transformations occurring in chemical chemical reactions in solution calorimetry and bomb

    reactions. calorimetry;

    ? use of the electrochemical series in predicting the products of

    redox reactions and writing half equations;

    ? limitations of predictions made using the electrochemical

    series;

     Note the revised focus of the use of electrochemical ? the construction and operation of simple galvanic primary and

    series to predict reactions (and its limitations) rather secondary cells;

    than a study of specific cells.

    ? the construction and operation of fuel cells: advantages and

    disadvantages of fuel cells compared to conventional energy

    sources;

    ? the construction and operation of simple electrolytic cells:

    comparison of electrolytic cells;

    ? application of Faraday’s laws in electrochemistry.

    Note: A summary report including annotations of three practical activities can be drawn from either Area of study 1 or Area of study 2; a written report on one practical activity and one task selected from a list (VCE Chemistry Study Design Units 3 and 4: 20082011 pages 2728) must be completed from the area of study NOT used for a summary report including annotations of three practical activities.

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