1. The problem statement, all variables and given/known data A mass spectrometer yields the following data for a beam of doubly ionized atoms of a single element. B = 8.0*10^-2 T q = 2(1.60*10^-19 C) r = 0.077 m V = 156 V I am asked to solve for Mass (m) in kg. 2. Relevant equations q/m=((2V)/((B^2)*(r^2))) I am only partially sure that this is the correct equation. It is the equation for the "Charge-to-Mass Ratio of an Ion in a Mass Spectrometer". 3. The attempt at a solution I tried to rearange the equation, but my Algebra skills aren't very good. This is what I ended up with: m=q/(2V)/((B^2)*(r^2)) I tried to work this out with my calculator, but my answer was incorrect. The number I got was very small: ~3.89*10^-28 EDIT: Tried to use this instead: m=(q(B^2)(r^2))/(2V) Still, my answer was far too small, at ~3.89*10^-26 My comprehension of both Physics and Algebra is limited at best. I would really appreciate some help. Thank you.