(Figure 1) shows a mass spectrometer, an analytical instrument used to identify the various molecules in a sample by measuring their charge-to-mass ratio q/m. The sample is ionized, the positive ions are accelerated (starting from rest) through a potential difference AV, and they then enter a region of uniform magnetic field. The field bends the ions into circular trajectories, but after just half a circle they either strike the wall or pass through a small opening to a detector. As the accelerating voltage is slowly increased, different ions reach the detector and are measured. Consider a mass spectrometer with a 200.00 mT magnetic field and an 8.0000 cm spacing between the entrance and exit holes. Figure ΔΙ' d Detector < 1 of 1 > ▼ Part A To five significant figures, what accelerating potential difference AV is required to detect the ion O₂? The masses of the atoms are shown in the table; the mass of the missing electron is less than 0.001 u and is not relevant at this level of precision. Use the following constants: 1 u = 1.6605 x 10-27 kg, e = 1.6022 x 10-19 C. Atomic masses 12 C 14N 160 Express your answer to five significant figures and include the appropriate units. Submit ▾ Part B AVO;= Value 12.000 u 14.003 u 15.995 u O AVNI = μA Request Answer What accelerating potential difference AV is required to detect N₂ ? Express your answer to five significant figures and include the appropriate units. μÀ @ Value Units Units ? P ?
(Figure 1) shows a mass spectrometer, an analytical instrument used to identify the various molecules in a sample by measuring their charge-to-mass ratio q/m. The sample is ionized, the positive ions are accelerated (starting from rest) through a potential difference AV, and they then enter a region of uniform magnetic field. The field bends the ions into circular trajectories, but after just half a circle they either strike the wall or pass through a small opening to a detector. As the accelerating voltage is slowly increased, different ions reach the detector and are measured. Consider a mass spectrometer with a 200.00 mT magnetic field and an 8.0000 cm spacing between the entrance and exit holes. Figure ΔΙ' d Detector < 1 of 1 > ▼ Part A To five significant figures, what accelerating potential difference AV is required to detect the ion O₂? The masses of the atoms are shown in the table; the mass of the missing electron is less than 0.001 u and is not relevant at this level of precision. Use the following constants: 1 u = 1.6605 x 10-27 kg, e = 1.6022 x 10-19 C. Atomic masses 12 C 14N 160 Express your answer to five significant figures and include the appropriate units. Submit ▾ Part B AVO;= Value 12.000 u 14.003 u 15.995 u O AVNI = μA Request Answer What accelerating potential difference AV is required to detect N₂ ? Express your answer to five significant figures and include the appropriate units. μÀ @ Value Units Units ? P ?
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 63AP: An electron of kinetic energy 2000 eV passes between parallel plates that are 1.0 an apart and kept...
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Question
Transcribed Image Text:(Figure 1) shows a mass spectrometer, an analytical
instrument used to identify the various molecules in a
sample by measuring their charge-to-mass ratio q/m. The
sample is ionized, the positive ions are accelerated
(starting from rest) through a potential difference AV, and
they then enter a region of uniform magnetic field. The
field bends the ions into circular trajectories, but after just
half a circle they either strike the wall or pass through a
small opening to a detector. As the accelerating voltage is
slowly increased, different ions reach the detector and are
measured. Consider a mass spectrometer with a
200.00 mT magnetic field and an 8.0000 cm spacing
between the entrance and exit holes.
Figure
+
AV
Detector
< 1 of 1
>
Part A
To five significant figures, what accelerating potential difference AV is required to detect the ion O? The masses of the atoms are
shown in the table; the mass of the missing electron is less than 0.001 u and is not relevant at this level of precision. Use the following
constants: 1 u = 1.6605 x 10-27 kg, e = 1.6022 x 10-19 C.
Atomic masses
12 C
14N
160
Express your answer to five significant figures and include the appropriate units.
AVO
Submit
Part B
=
AVN
=
12.000 u
14.003 u
15.995 u
Submit
OU
I
Value
What accelerating potential difference AV is required to detect N₂?
Express your answer to five significant figures and include the appropriate units.
μA
Request Answer
0
μÅ
Value
Units
Request Answer
Units
?
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