A sample of chloroethane is analysed using a time of flight (TOF) mass spectrometer, where fragment ions are formed by electron impact ionisation.
A 37Cl+^{37}\text{Cl}^+37Cl+ fragment ion with a kinetic energy of 2.150×10−14 J2.150 \times 10^{-14}\text{ J}2.150×10−14 J travels through a flight tube of length 1.450 m1.450\text{ m}1.450 m.
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 this ion to travel the length of the flight tube to reach the detector. Give your answer to 3 significant figures.
The Avogadro constant, L=6.022×1023 mol−1L = 6.022 \times 10^{23}\text{ mol}^{-1}L=6.022×1023 mol−1.