AS Chemistry- helping each other out!

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Help!
Stuck on this question 😚😳.

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Reply 1462

Original post by S.Ahmad

I personally find Hess' Law related questions God's gift once you understand the principles behind the two cycles.

I find them horrible

Original post by Kadak

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Please help!
Question: Suggest why oxygen radicals are really diradicals.

Okay, a typical free radical contains ONE unpaired electron. Diradicals woul probably be a species which contains two unpaired electrons. So yeah, you could argue that monoatomic oxygen contains two unpaired electrons :redface:

Reply 1463

samb1234

Well firstly work out how many chlorine radicals there are in 1g (using moles and Avogadro's constant). Then divide 150kg by this number to get the mass of ozone destroyed by one radical. Then you can work out how many moles of O3 this is and then multiply by Avogadro's constant.

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Reply 1464

Original post by zhang-liao

Hess stuff = pure evil :fangs:

Unit 2 papers have 3 sections to it. :redface:

I love physical chemistry :colondollar:

Oh damn, I was planning to do one unit 2 paper today, ended up not doing it lol
3 sections on organic chem? Nty :colonhash:

Reply 1465

samb1234

Original post by C0balt

I love physical chemistry :colondollar:

Oh damn, I was planning to do one unit 2 paper today, ended up not doing it lol
3 sections on organic chem? Nty :colonhash:

Unit 2 isn't just organic for edexcel

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Reply 1466

Original post by C0balt

I love physical chemistry :colondollar:

Oh damn, I was planning to do one unit 2 paper today, ended up not doing it lol
3 sections on organic chem? Nty :colonhash:

Organic Chemistry is the best :colonhash:

Noooooo, 3 individual sections so you have Section A (MCQ), Section B (random questions), Section C (a question focussing on a case study or some information - typically Green Chemistry) :colondollar:

Reply 1467

Original post by samb1234

Unit 2 isn't just organic for edexcel

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Well I know, I thought I get three Qs on organic
I've done extracts of unit 2 paper for test and homework so yeah

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Reply 1468

Original post by zhang-liao

Organic Chemistry is the best :colonhash:

Oh ok
**** green chem...that is the only topic in AS chemistry that I hate with genuine passion

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Reply 1469

Original post by C0balt

Oh ok
**** green chem...that is the only topic in AS chemistry that I hate with genuine passion

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Green Chemistry is so boring sometimes :redface:

Reply 1470

Original post by zhang-liao

Green Chemistry is so boring sometimes :redface:

I mean I get that it is a serious, real issue and we should have an understanding of it.
But I don't see why I have to be examined one that crap :fuhrer:

Reply 1471

Original post by samb1234

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Thank you 😃 !

Reply 1472

Original post by Kadak

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Please help!
Question: Suggest why oxygen radicals are really diradicals.

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Thank you 😃 !Also,am I the only one who thinks of Dirac when diradical is mentioned .

Reply 1473

Original post by C0balt

I mean I get that it is a serious, real issue and we should have an understanding of it.
But I don't see why I have to be examined one that crap :fuhrer:

Yeah I get you by what you mean but I guess what's its part of the specification so we have to assessed on it :redface:

Just like how we have to get assessed by stupid Hess' cycles which won't in any way or form be applicable in a normal person's life :redface:

Reply 1474

Original post by Kadak

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Thank you !Also,am I the only one who thinks of Dirac when diradical is mentioned .

Just googled and you mean Paul Dirac?
No, not the slightest :redface:

Reply 1475

Original post by zhang-liao

Just googled and you mean Paul Dirac?
No, not the slightest :redface:

Yes,I mean Paul dirac.Oh, I'm abit disappointed you don't know who he is.He predicted the existence of antimatter 😃.

Reply 1476

Original post by Kadak

Yes,I mean Paul dirac.Oh, I'm abit disappointed you don't know who he is.He predicted the existence of antimatter .

I don't do Physics :redface:

Reply 1477

Super199

Someone sort me out, posted a question a page or two back about half equations. Cheers

Reply 1478

Original post by zhang-liao

I don't do Physics :redface:

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You should.It's pretty good.Did you know you can derive some of the equations for the gas laws with nothing more than Newton 's equations?

Reply 1479