A sample of iodine is ionised by electron impact in a time of flight (TOF) mass spectrometer.
A 127I+^{127}\text{I}^+127I+ ion with a kinetic energy of 1.840×10−13 J1.840 \times 10^{-13}\text{ J}1.840×10−13 J travels through a 2.100 m2.100\text{ m}2.100 m flight tube.
The kinetic energy of the ion is given by the equation:
KE=12mv2KE = \frac{1}{2}mv^2KE=21mv2
where:
Calculate the time, in seconds, for the ion to reach the detector. Given the Avogadro constant, L=6.022×1023 mol−1L = 6.022 \times 10^{23}\text{ mol}^{-1}L=6.022×1023 mol−1.