Recent Changes

HSC Command Terms
Tips on preparing for the exam - first-hand investigations too!
Class practice questions
{2003 Q28 and Q29.pdf}
Other resources
Nuclear stability
Website of practise worksheets
{Mole_Molarity_Problems.pdf}
Monitoring and management practice questions
{2003 Q28 and Q29.pdf}
Exam practice
{12CHE_T2_Exam_08.doc}

Production
Production of Materials Revision
{Revision_Prod_Mater.pdf}
{Revision_Prod_Mater_Answers.pdf}
Acidic Environment Revision
{Revision_Acid_Env.pdf}
{Revision_Acid_Env_Answers.pdf}
and Management Revision
{Revision_Chem_Monit.pdf}
{Revision_Chem_Monit_Answers.pdf}
and Conservation Revision
{Revision_Shipwrecks.pdf}
{Revision_Shipwrecks_Answers.pdf}
General
Website of practise worksheets
{Mole_Molarity_Problems.pdf}
HSC Half-Yearly Review Jeopardy Game
BOS HSC Resources
Standards Packages
Class practice questions
{2003 Q28 and Q29.pdf}
Past Papers
HSC Trial Exam 2012 - notesOther resources
Nuclear stability
http://www.kentchemistry.com/links/Nuclear/BandStability.htm
The following table shows the colour changes and change ranges for four indicators: {http://www.hsc.csu.edu.au/chemistry/core/acidic/chem931/image1.gif} Colour changes and change ranges for four indicators
In changing from yellow to blue, the first indicator goes through green between pH 6.0 and 7.6, the second indicator goes through purple from pH 5.0 to 8.0 while the third goes through orange from pH 3.1 to 4.4. The fourth indicator goes from colourless through pink to red/bright pink from pH 8.3 to 10.0.
Website of practise worksheets
{Mole_Molarity_Problems.pdf}
Exam practice
{12CHE_T2_Exam_08.doc}
{12CHE_T2_Exam_08_ans[1].pdf}
{Chemistry Trial HSC Examination 2010_Answer Key.pdf}
{Catholic HSC Chem Trial 2013_Marking Scheme.pdf}
More papers located on MOSS - year 12 Resource folderGames
HSC Half-Yearly Review Jeopardy Game
http://jeopardylabs.com/play/year-12-hsc-chemistry-review

Introduction
This unit is all about acid and base chemistry. We will learn about some of the common household acids and bases and discover some of their uses in everyday life. We will investigate the pH scale and learn about indicators which determine pH levels. Equilibrium will be discussed in the context of acids and bases and Le Chatelier's Principle will be introduced. We will learn the technique of titration and make an ester in the laboratory.
Internet Resources {http://www.funsci.com/fun3_en/acids/acids_20.jpg}
{http://classconnection.s3.amazonaws.com/50/flashcards/865050/gif/phscale1352083169891.gif}
Acid/Base basics
Examples of Acid/Base titration curves

{http://www.funsci.com/fun3_en/acids/acids_01.jpg} Introduction{http://mchsscience.weebly.com/uploads/5/6/4/7/5647812/355957012_orig.jpg?1300907494}
Introduction
This unit is all about acid and base chemistry. We will learn about some of the common household acids and bases and discover some of their uses in everyday life. We will investigate the pH scale and learn about indicators which determine pH levels. Equilibrium will be discussed in the context of acids and bases and Le Chatelier's Principle will be introduced. We will learn the technique of titration and make an ester in the laboratory.
Internet Resources {http://www.funsci.com/fun3_en/acids/acids_20.jpg}

{http://www.devicedaily.com/wp-content/uploads/2008/11/ethanol.jpg} {http://www.treehugger.com/us-import-radioactive-waste.jpg}{http://perc.org/sites/default/files/2011/05/ethanol-corn.jpg}
{http://4.bp.blogspot.com/-A-21GxEZtu4/TwTnCXhNfLI/AAAAAAAAAoI/Iv-DDg44OEM/s400/fision-nuclear.jpg}
Introduction
This unit is concerned with Materials Chemistry. Specifically, we will look at the uses for fossil fuels and some basic reactions that are used in the petrochemical industry. We will introduce polymers and the general reactions that produce them. We will learn about natural and man-made polymers and compare the properties of different types. We will study the production and uses of ethanol as a alternative fuel source. Finally, we will introduce the basics of radioactive isotopes, explore some of their decay patterns and discover some of their industrial and medical uses.

Standards package
http://arc.boardofstudies.nsw.edu.au/go/hsc/std-packs/
Work for Mrs Sasaki's HSC Chemistry class - Week 2 Term 2
Monday 23rd April (period 3 & 4)
Work together in the groups you worked in for revision in order to complete the worksheets for this simulation on titrations and equivalence point.
Gizmo: www.explorelearning.com
Class code: FDE2E5EJR3
Here's the soft copy, but the printed version is on the teacher's desk in E215.
{gizmo - TitrationSE.pdf}
Here are the answers to check (after you've done it, or to refer to, to know you are on the right track :-)
{gizmo - TitrationSE_Key.pdf}
Tuesday 24th April
Complete the following dot points from our Acidic Environment syllabus (these are taken from HSC Online)
Be sure to assess the validity, reliability and accuracy of your sources as you complete this research task.
net8process information from secondary sources to identify and describe the uses of esters as flavours and perfumes in processed foods and cosmetics
You can processinformation from the labels on processed food containers and cosmetics. You should be able to recognise and record the names of esters they contain. Remember the name of an ester is usually in two words:
the first word is derived from the alcohol and ends in -yl
the second word is derived from the acid and ends in -oate.
Alternatively, you could look in a list of food additives or cosmetic ingredients and try to recognise ester names.
Having identified the names of some esters, you should then use a chemical dictionary, chemical encyclopedia or Internet search engine to find uses of those esters.
outline some examples of the occurrence, production and uses of esters
Use a chemical dictionary, chemical encyclopedia or Internet search engine to find occurrence, production and uses of esters.
Wednesday 25th of April
Planning to make an ester. We will do this experiment on the Monday of Week 4.
Please research which fragrances various combinations make (eg. oil of wintergreen - like in tiger balm, or banana or strawberry fragrance for example).
Here is the list of chemicals we have;
methanol, ethanol, 1-propanol, 1-butanol
methanoic acid (aka formic acid), ethanoic acid (aka acetic acid), proprionoic acid, benzoic acid (aka salicyclic acid)
Here's the soft copy of the prac -> the printed version is on the teacher's desk in E215
{34 - preparation of an ester.pdf}
Thursday 26th of April
You can begin to work on research for your assessment task, which is due on Monday the 11th of June (week 9)
Here's the soft copy, though the printed version is on the teachers' desk.
{12_CHE_Open_Investigation_12.docx}
Homework
Revision - please complete this over the long weekend.
And do the Topic Test to further test your knowledge of this topic.
Soft copies are on SharePoint (Surfing Chemistry), printed versions are on the desk at front of E215
Have a great long weekend everyone :-)
Regards,
Mrs S

{Chemistry Trial HSC Examination 2010(2).doc}
{Chemistry Trial HSC Examination 2010_Answer Key.pdf}
{Catholic HSC Chem Trial 2013_Marking Scheme.pdf}
More papers located on MOSS - year 12 Resource folder
http://jeopardylabs.com/play/year-12-hsc-chemistry-review