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Cambridge Chemistry Challenge

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Original post by Chemistry 456
:frown: I still don't know

Are you stuck on gold or silver?
Original post by john smilth
Are you stuck on gold or silver?

Silver
Original post by Chemistry 456
Silver

Ok so where are you at? What information do you know already?
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
And anyone with any gold info because I am hopeless at this sort of maths
Reply 2425
Avatar for Smithy17
Smithy17
Original post by john smilth
And anyone with any gold info because I am hopeless at this sort of maths


Still trying :confused:

E=m x c x change in temp.???
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
Original post by Smithy17
Still trying :confused:

E=m x c x change in temp.???

But you don't have that info
The combustion of paraffin wax is 42 KJ/g if this helps
Any luck at all?
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
Reply 2431
Avatar for Smithy17
Smithy17
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
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!!!!!
Hints for rg plzz
Original post by happymonkey7
Hints for rg plzz

Hint for gold please
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
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
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?
Don't both because I have worked it out
Is anyone still up and on Rg?

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