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You'd get the most constructive peak dispersion if your disubstitued benzene had the two electron withdrawing groups in the meta position. As they are ortho you get a mess, since their affect is competing.

a: http://www.aist.go.jp/RIODB/SDBS/cgi-bin/img_disp.cgi?disptype=disp3&imgdir=hsp&fname=HSP01163&sdbsno=724 b: Whichever has a higher affinity for the stationary phase. Hexane and ethyl acetate are both relatively insoluble in water. O-hydroxyacetophenone has the ability to hydrogen...

Well a mixture of kerosene and silica gel keeps atmospheric water out. Rust is oxidized iron. So it is redox chemistry; Fe(s) <--> Fe2+(aq) + 2 e- 4e- + 4 H+(aq) + O2(aq) <--> 2 H2O(l) No water -> no ionic product -> no H+ One line answer is; Kerosene and silica gel suppress the...

The easiest thing to do is to search the chemical name and msds (material safety datasheet) and you don't need any book!

furthermore if you are making organic halides mention that they should be disposed of in appropriate residue bottles!

CSIS? Bah... Chemical / Risk / Safety precautions 2M HCl / Causes burns, irritating to respiratory system / Wear suitable protective clothing, gloves and eye/face protection. 2M NaOH / Causes severe burns / Avoid eye and skin contact. Wear suitable protective clothing, gloves and...

If you appeal to your teacher and they still don't accept it go to your principal or someone higher up the chain of command than your teacher. That's what it is there for...

Yeah, scientific writing never uses first person. Writing "I think ..." etc is stupid; of course you think it, else wtf would you be writing it! All discussions about practical work should be past tense and in answering a posed question it should be in present tense.

Easiest would have to be bicarb of soda strong acid/base titrations...

The graph however is terrible (not the results). I hope you are not going to submit that! cnbf to type everything wrong with it; so if you are after suggestions pls say so.

well the answer is -2499 kJ/mol ... ... though I know you need more information than what you have given. Did you previously react HCl aqueous with Magnesium metal and calculate the enthalpy change for that process? ---- Mg + Cl2 +6H2 +3O2 = state A |...................|...

I think what you mean is ... is the IUPAC nomenclature the same as the systematic naming taught in HSC Chem; Yes it is. Is it what is used always; No. Ie. Nobody talks about propanone, methanoic acid, phenylethene etc.

If you are stuck just pick any random acedemic staff member at any university school of chemmy. UNSW SoC's staff pages are found 'ere; http://www.chem.unsw.edu.au/schoolinfo/staffpages.html

You know you are a chem nerd when ... ... you get an second year organic chem assignment and on the first night you are already writing to the lecturer-in-charge telling them how the assignment is flawed. The again maybe I am crazy. hmmm... where the hell has my C13 NMR nitrile singlet gone...

More like; "wtf ... phenol hydrogen ??!! .... I think you mean benzene buddy!"

And you suddenly realise there is no point denying it after you have been giving away pocket PDs for the last three hours .. !

Look out boys! The phthalates are coming!!! Kind of on topic! http://www.newscientist.com/article.ns?id=dn7440

Risk Analysis? HSC Chem? Oh you make me laugh!

When Sodium burns it is forms the ionic peroxide. As such the test is no different for 0 or +I oxidation states. The only counter argument is when you have metal cations tightly bound to proteins etc. due to the energy absorbed by the protein structure (since it has sooo many bonds more...

important ... ?