TOF calculations 0.0 / 5 ? ChemistryAtomic structureA2/A-levelAQA Created by: ToroCSCreated on: 06-02-21 14:17 Equations to calculate velocity, distance and time v=sqrt(2KE/m) d=t x sqrt(2KE/m) t=d x sqrt(m/2KE) 1 of 5 How to calculate mass of one ion (kg) Mr/1000 Ans/av. constant 2 of 5 Calculate velocity of ^138Ba^+ KE = 2.77 x 10^-15 J v=sqrt(2KE/m) 1.55 x 10^5 ms^-1 3 of 5 Calculate Mr of ion produced via electrospray KE of 3 x10^-15 J and v of 1.5 x10^5ms^-1 m=2KE/v^2 convert kg - g then times by av. constant -1 159.6 4 of 5 63-Cu;65-Cu Accelerated through flight tube ^63Cu^+ took 1.4242 x 10^-5 s Find time of ^65Cu^+ mass of both KE and distance the same - put KE equations equal to each other and set d to 1 solve for t 1.45 x 10^-5s 5 of 5
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