Cambridge Chemistry Challenge

anyone know the molecular mass for graphene?

There is no mr for graphene since it is like a carbon polymer, I think this makes me come to think that it should
be about carbon and the surface area of the earth


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Just got silver, I found it useful to first find out the two middle ones (i.e. the ones that must have 6 not within 50 years).

Do you want a bigger hint?

There is no mr for graphene since it is like a carbon polymer, I think this makes me come to think that it should
be about carbon and the surface area of the earth


This was posted from The Student Room's iPhone/iPad App

Search for the mass per m² for graphene. It's easy to find if you google. That should be a bit of a starting point

Search for the mass per m² for graphene. It's easy to find if you google. That should be a bit of a starting point

If anyone gets Rg, pm me, i'm completely stuck.

Have you done it?



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have you done it? I already have the mass per m2 but I'm not sure what to do with it. I tried dividing the SA of the earth with it. Wrong answer

Yeah I see it now lol, just maths


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There's a lot of information out there about isomers. I googled and found a page of notes on isomers of octahedral complexes which told me how many isomers there would be for an octahedral complex with 6 different ligands. I then worked out the phosphorus compound from that as well.

You can sit and try and draw out all the isomers, but I can tell you that you'll be there for a while...!

Re: Rg
I don't have molymods at home so I am resorting to rolling up pieces of paper, colouring them different colours, blu-tacking them together and seeing how many different stereoisomers I can get until I get bored... Please someone save me from this insanity! Can someone teach me a more scientific method of doing this?