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Only multiple-choice answers: http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2004exams/pdf_doc/chemistry_er_04.pdf

Well, it carries either base or acid. Still, having water in it does not alter the number of moles of acid or base it will hold. Rinsing it with base or acid just defeats the whole purpose of measuring exactly 25 mL with a pipette. Also, when you have half a drop of base/acid coming...

http://community.boredofstudies.org/showthread.php?t=81861

The conical flask is rinsed with water because if it was rinsed with acid, then the number of moles of acid in the conical flask would be too high. If it was rinsed with base, then the number of moles of acid would be too low. It's 83, not 82. Past 92 are transuranic elements.

How did you know? Nobody is supposed to know. :confused:

:eek: ... How? That's a great idea. :) Also, you can double-date if that much support is necessary. :p

I would type it up for you, but I have a feeling it's quicker if you flick to the CFCs section of your textbook. :) Look here for all your water needs: http://community.boredofstudies.org/showthread.php?t=86049

Haha, see what I mean? :p

Haha, exactly what I was thinking of. Hey, do your initials happen to be J.H.?

It's always good to have a guide, but the best notes are in your own words, without consulting a textbook. ;)

Fats and oils are no longer in the course. ;)

It is forensics. Post in the Forensics forum next time so other Chem people won't start panicking. :p It's basically just flame tests and AES. You'll be given the emission spectra of those elements in the exam where you need to identify elements in a mixture, etc. You won't be asked to...

I asked that here. I'm going to call HSC Advice Line this afternoon to confirm. But if you're comparing say glucose and fructose, or maltose and sucrose, it's easier to draw than to describe.

NH4+ + MnO2 + H2O + e- → Mn(OH)3 + NH3 You can still get away with full marks if you don't include these equations. They're rather long and confusing.

No, no. There is. The extremely high cost holds it back from large-scale manufacture.

Haber is module 3. :p

You read CC. :o There was a long debate about this, and I'm convinced that it's benzylethene. Remember how these things are named. If you have one hydrogen atom of ethene replaced with a chlorine atom, then it becomes chloroethene. Similarly, if you have one hydrogen atom replaced with a...

She has a boyfriend ... ? Then shouldn't you not be going for her? There is a difference between single and taken people - taken people are taken! Don't cause any trouble there. :p I'm sure she's not the only girl for you. Anyway to answer your question, when you're with someone you...

Ah, then you should have put this in the Industrial Chem forum? :p I believe the test for nitrates is the brown-ring test, which is quite annoying. It depends on whether they're asking you to learn how to identify one specific ion, a cation, or an anion. If you can choose, then pick...

Look in your textbook. There should be tables. Are you after a specific ion? Because there are a lot. :p