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.