Question
C1. In the operating room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is
C1. 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 10-25 kg). In a spectrometer, a single ionized molecule of isoflurane (charge = + e) moves at a speed of 8.25 103 m/s on a circular path that has a radius of 0.167 m. What is the magnitude of the magnetic field that the spectrometer uses?
C2. Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 10-25 kg. The ions are accelerated from rest through a potential difference of 1.90 kV. Then, a 0.480-T magnetic field causes the ions to follow a circular path. Determine the radius of the path.
C3. Two isotopes of carbon, carbon-12 and carbon-13, have masses of 19.93 10-27 kg and 21.59 10-27 kg, respectively. These two isotopes are singly ionized (+e) and each is given a speed of 6.531 105 m/s. The ions then enter the bending region of a mass spectrometer where the magnetic field is 0.6813 T. Determine the spatial separation between the two isotopes after they have traveled through a half-circle. Use 1.602 10-19 C as the elementary charge and give your answer to four significant figures.
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