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# Cambridge Chemistry Challenge watch

1. (Original post by Chemistry 456)
I still don't know
Are you stuck on gold or silver?
2. (Original post by john smilth)
Are you stuck on gold or silver?
Silver
3. (Original post by Chemistry 456)
Silver
Ok so where are you at? What information do you know already?
4. (Original post by john smilth)
Ok so where are you at? What information do you know already?
I know what the right numbers stand for but not the left
5. And anyone with any gold info because I am hopeless at this sort of maths
6. (Original post by john smilth)
And anyone with any gold info because I am hopeless at this sort of maths
Still trying

E=m x c x change in temp.???
7. (Original post by Chemistry 456)
I know what the right numbers stand for but not the left
If you just type into google pH = 7.(i can't remember the decimal points) is 0 then scroll down until you see chemwiki and it gives you all the results there
8. (Original post by Smithy17)
Still trying

E=m x c x change in temp.???
But you don't have that info
9. The combustion of paraffin wax is 42 KJ/g if this helps
10. Any luck at all?
11. (Original post by john smilth)
If you just type into google pH = 7.(i can't remember the decimal points) is 0 then scroll down until you see chemwiki and it gives you all the results there
Thank you
12. (Original post by john smilth)
The combustion of paraffin wax is 42 KJ/g if this helps
Mass of 624.596 Kg if it helps
13. (Original post by Smithy17)
Mass of 624.596 Kg if it helps
Might have to sleep on it but it's going to bug me tonight!!!!!
14. Hints for rg plzz
15. (Original post by happymonkey7)
Hints for rg plzz
16. (Original post by happymonkey7)
Hints for rg plzz
I might be able to help if you can help on gold please I've been on gold for the last hour but my maths isn't very good
17. u need to calculate the specific heat of fusion... i got lucky in that one just put a random number and it was actually correct
18. (Original post by happymonkey7)
u need to calculate the specific heat of fusion... i got lucky in that one just put a random number and it was actually correct
Could you PM me the answer or an equation or instructions on how to do it?
19. Don't both because I have worked it out
20. Is anyone still up and on Rg?

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