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OCR F324-June 2013 Chemistry

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Nope, it's M2 then F325, then C3 then C4 the F324 and STEP II on the same day, then FP2 and finally STEP I and AEA also on the same day, should be great fun :tongue:

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OMG , how many exams are you doing! Really well done though you have good motivation keep it up!

Reply 1261

MathsNerd1

Original post by otrivine

OMG , how many exams are you doing! Really well done though you have good motivation keep it up!

11 in total, only 9 left though! :biggrin:

And its going to be some fun few weeks now :tongue:

Better get back to my M2 now, will probably be back on later on tonight though for a few questions :smile:

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Reply 1262

otrivine

Original post by MathsNerd1

11 in total, only 9 left though! :biggrin:

And its going to be some fun few weeks now :tongue:

Better get back to my M2 now, will probably be back on later on tonight though for a few questions :smile:

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Sure and you did not answer my question for F325, I assume you did not know the answer to that, it was a tough question :tongue:

Reply 1263

ofudge

Original post by Sarangtaec

Whats F323 and F326? We've only done the ones I listed plus practicals which I think I had 50 UMS at AS and I'm not sure but I think 68/100 at A2?

F323 and F326 are the practical units.
you got 50/60 for AS
What you get for A2 F326? then ill work it out. (its out of 40 raw marks) then /60 for a UMS

Reply 1264

MathsNerd1

Original post by otrivine

Sure and you did not answer my question for F325, I assume you did not know the answer to that, it was a tough question :tongue:

I didn't answer as another poster already said what I was going to say, that's all :tongue:

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Reply 1265

master y

Original post by ofudge

F323 and F326 are the practical units.
you got 50/60 for AS
What you get for A2 F326? then ill work it out. (its out of 40 raw marks) then /60 for a UMS

do you know how many ums is 37/40?

Reply 1266

Zaphod77

Original post by master y

do you know how many ums is 37/40?

51/60 - seems harsh, but that's going by last year's grade boundaries.

Reply 1267

master y

Original post by Zaphod77

51/60 - seems harsh, but that's going by last year's grade boundaries.

yeah that is harsh..:/ lets hope the grade boundaries are lower this year :crossedf:

Reply 1268

Zaphod77

Original post by master y

yeah that is harsh..:/ lets hope the grade boundaries are lower this year :crossedf:

Hopefully, but it depends on the current set of students! Hi-5 on the same coursework mark though :tongue:

Reply 1269

master y

Original post by Zaphod77

Hopefully, but it depends on the current set of students! Hi-5 on the same coursework mark though :tongue:

Reply 1270

master y

Original post by Zaphod77

Hopefully, but it depends on the current set of students! Hi-5 on the same coursework mark though :tongue:

Original post by MathsNerd1

I didn't answer as another poster already said what I was going to say, that's all :tongue:

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Original post by ofudge

F323 and F326 are the practical units.
you got 50/60 for AS
What you get for A2 F326? then ill work it out. (its out of 40 raw marks) then /60 for a UMS

Original post by otrivine

Sure and you did not answer my question for F325, I assume you did not know the answer to that, it was a tough question :tongue:

Hiya, just wondering for Q4bii...http://www.ocr.org.uk/Images/79471-question-paper-unit-f324-rings-polymers-and-analysis.pdf why is it that the alkane has a longer retention time.. is it so it can interact more with the stationary phase? I thought the alcohol would have a longer retention time because it can form hydrogen bonds with the alkane... i might be totally wrong here... someone correct me!!

Reply 1271

Lilmzbest

Original post by master y

My thoughts exactly! I'm planning on going to ask my chem teacher :tongue:

Reply 1272

Zaphod77

Original post by master y

I wonder if it's because the alkane could take part in a substitution reaction with the alkane liquid, forming a longer alkane? Then it would be alcohol, as alcohols are highly soluble.

Reply 1273

ofudge

Has anyone done Jan 2011 Q 4bi) ?
http://www.ocr.org.uk/Images/58126-question-paper-unit-f324-rings-polymers-and-analysis.pdf

You're asked to draw the skeletal formula for an aldehyde- how on earth did anyone get it?
could somebody explain please...

Reply 1274

master y

Original post by ofudge

It's quite simple, perhaps you didn't read the box.. it says an aldehyde (RCHO) is reacted with bla bla in synthesis 2. In the question it gives you R, so now can you draw the aldehyde?

Reply 1275

master y

Original post by Lilmzbest

My thoughts exactly! I'm planning on going to ask my chem teacher :tongue:

Please tell me what he/she says after!

Reply 1276

Lilmzbest

Original post by master y

Please tell me what he/she says after!

Will do

Reply 1277

ofudge

Original post by master y

It's quite simple, perhaps you didn't read the box.. it says an aldehyde (RCHO) is reacted with bla bla in synthesis 2. In the question it gives you R, so now can you draw the aldehyde?

I got that bit that it was an aldehyde, but how did you work out R to be CH2COOH?

Reply 1278

master y

Original post by ofudge

I got that bit that it was an aldehyde, but how did you work out R to be CH2COOH?

its in the question... read the question.

Reply 1279

D4rth

How's everyone been doing in past papers. I've fallen into the trap again of just rushing through and not doing them properly.

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