Mass Spectrometry

[kashmirekat]

I have two molecules CO and N2 with masses 28.0106u and 28.0134u respectively.

I need to determine the radius of curvature the spectrometer must have if the molecules are to be separated on film by 0.50mm.

I don't even know where to begin to solve this. The only equation relating to it in the book is m=qB'r/v, where r=mv/qB'. But I don't have v or q or B'. Agghhh.

Mco=28.0106u
Mn2=28.0134u
d=0.50mm
r=?

Would someone point me in the right direction? Thank you.

[Doc Al]

This is a duplicate thread. See: http://www.physicsforums.com/showthread.php?t=18255

[scarecrow]

How can I detemine if the following heteroatoms exist in a compound looking at a mass spectrum:
S, Cl, and Br.