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Chemistry Questions Thread New Syllabus (1 Viewer)

jazz519

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Will chemistry modules 1-4 be assessed in the HSC exam (or will it be assumed knowledge)?
So if you look above a little to the post on October 1st, you will see the main topics from Year 11 that you need to know. As for explicitly testing something in the year 11 syllabus, that doesn't show up again in year 12, no they won't test those things
 

fanxychild

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So if you look above a little to the post on October 1st, you will see the main topics from Year 11 that you need to know. As for explicitly testing something in the year 11 syllabus, that doesn't show up again in year 12, no they won't test those things
oh I see, thank you
 

jazz519

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Tip on how to set out K constant calculations:

When we set out K constant calculations there is a way you can make your working out laid out neat, easy to read for the marker and most importantly gives you a template for things you need to do each calculation (which will make getting the answer a lot easier)

The approach you should take is the following as shown in the question and answer attached:

1. Write out the K constant expression for the reaction with variables (it is really important that you write the one with variables before subbing in even if it gives you the answer, because often marking criterias have words like “correctly writes a K expression for the reaction”. Now if you just subbed in then you haven’t really satisfied that criteria, so you run the risk of losing a mark even if you get the correct answer)

2. Draw up a RICE table and fill with data from question (even if the question seems easy this is an important part of the working and in hard questions the RICE table is really useful in giving you hints on what to do)

3. Fill in the rest of the rice table (using molar ratios and etc)

4. sub in the equilibrium conc to the K constant expression from

5. round your answer to the appropriate significant figures

If you follow these steps solving these questions should feel like doing the same thing over and over (which is good because it means you will get the marks)


9D1C4B20-2761-46B0-805A-B2601E598108.png
 

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