Incorrect. In the operating room, anesthesiologists use mass spectrometers to mo
ID: 2151163 • Letter: I
Question
Incorrect. In the operating room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is the anesthetic isoflurane (molecular mass = 3.06 times 10-25 kg). In a spectrometer, a single ionized molecule of isoflurane (charge = + e) moves at a speed of 8.71 times 103 m/s on a circular path that has a radius of 0.253 m. What is the magnitude of the magnetic field that the spectrometer uses? The number of significant digits is set to 3; the tolerance is +/-2%Explanation / Answer
Here Centripetal Force is provided by Magnetic Force
mv^2/r = Bqv
Therefore
(3.06*10^-25*8.71*10^3)/0.253 = B*1.6*10^-19
Therefore
B = 0.065841 T
= 658.41 Gauss