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# OCR GCSE Chemistry A- C7 + Ideas In Context, May 24th 2012. OFFICIAL THREAD

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1. aidn you are a complete life saver! thank you so so so so much
2. (Original post by Aidn)
UMS for coursework
40 is 100
34 is 90.... naturally 37, being the middle mark = 95 UMS, I presume that the very most 38 raw could be 96...
That isn't necessarily true. Someone said it was 37+/40 = 100UMS
Then 36= 95
3. (Original post by kingberito123)
on chem ive got 44/50 43/50 and 34/40 for course work
biology i got 48/50,44/50 and 34/40
in physics i got 43/50 43/50 and 35/40

could you tell me what i need to get for each please
seems like your the UMS guru :P
Well, I did biology and physics for you..
Your chemistry: (270-48-44-90= 88 UMS) A very high A needed..
Not hard for C7 grade boundaries considering it's such a hard topic..
4. thanks alot man made me feel much better about my exams
5. (Original post by Coke1)
That isn't necessarily true. Someone said it was 37+/40 = 100UMS
Then 36= 95
How UMS is actually calculated is the total number of UMS is divided by the total number of raw and then that number is multipled by the amount more raw you got than that grade boundary, then you add the total to that UMS boundary..
For example: If you get 37 11 UMS points, 7 raw marks (you count the top marks aswell) 11/7 = 1.57... x 3 (2 raw above 34) = 4.7....
4.7 + 90 = 94.7 which is rounded to 95 UMS
6. Im scared, i got an A in 123 and an A* in my coursework and 456 but i have a feeling im gonna mess up in this exam, ive been getting A*s in the past papers even with out doing the ideas in context section but one or two papers are really really difficult.
7. (Original post by Aidn)
How UMS is actually calculated is the total number of UMS is divided by the total number of raw and then that number is multipled by the amount more raw you got than that grade boundary, then you add the total to that UMS boundary..
For example: If you get 37 11 UMS points, 7 raw marks (you count the top marks aswell) 11/7 = 1.57... x 3 (2 raw above 34) = 4.7....
4.7 + 90 = 94.7 which is rounded to 95 UMS

Still not always the case from what I have seen. Like sometimes, I have taken test papers where it was for example, 32/40 for an A*- but 36-40=100 UMS. It varies, and UMS is by no means exactly on scale.
8. It's scary. It's suprising how important your coursework is. The chances are I got a crap mark, we had to redo our coursework in a matter of hours......
9. (Original post by Freddy-Francis)
I just got 23/55 without pre-release.
Full marks without pre-release! - seriously! (June 2011 past paper)
10. lol aidn and coke1 is stealin my UMS business lol
11. (Original post by DeathByBSOD)
Full marks without pre-release! - seriously! (June 2011 past paper)
But only on that paper. Other PAPERS I am getting B's. The calculations mess me up. I find it very hard
12. (Original post by DeathByBSOD)
lol aidn and coke1 is stealin my UMS business lol
lol true. hows ur revision going for exam tomorow
13. (Original post by Freddy-Francis)
lol true. hows ur revision going for exam tomorow
Yeah, my revision is going very good for me. i was just completing my chem workbook today and did a few of the past papers online. got full marks (without pre release on Specimen paper, 2010 and 11, doing 2009 now as we speak!
14. (Original post by HHJ)
Thank youu soo muchh... but I still have to revise ALOTT
I'm sure you'll be fine! you don't need to get a magnificent grade to get an A* overall! And the grade boundaries are low especially for GCSE so you'll be fine!

Good luck!
15. (Original post by DeathByBSOD)
Yeah, my revision is going very good for me. i was just completing my chem workbook today and did a few of the past papers online. got full marks (without pre release on Specimen paper, 2010 and 11, doing 2009 now as we speak!
Help me. I am struggling
16. (Original post by Freddy-Francis)
Help me. I am struggling
what you need help on? give me a question, ill answer it.
18. I will try to answer it without looking anything
19. (Original post by Freddy-Francis)
I will try to answer it without looking anything
I am really struggling on formula mass can you help?
20. Goodluck to all doing the exam tomorrow!

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