Homework Answers
The statement which is not true is
E) All ions travel with the same kinetic energy.
The individual ions can travel at the speeds around 300 m/s, but because of the alternate and frequent collisions between the respective ions and molecules of the atmosphere which is used for supporting will makes the velocity to be reduced to 5 m/s to 10 m/s. Because of this variation in the velocities depending on the collisions, each ion has different kinetic energy.
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Which statement is NOT true for ion mobility spectrometry? A) Ion mobility spectrometer is not a form of mass spectrometry. B) Ion mobility spectrometry is gas-phase electrophoresis. S) Ions are...
Mass Spectrometry Part A: Match each statement with the term it most closely matches. A Hard...
Mass Spectrometry Part A: Match each statement with the term it most closely matches. A Hard ionization B Electrospray Ionization (ESI) C Molecular ion peak D Ion-Trap E Fast atom bombardment (FAB) F Time of Flight (TOF) G Base peak H Quadrupole I Soft ionization J Matrix-Assisted Laser Desorption/Ionization (MALDI) K Magnetic sector 1. ___ This ionization technique is used to analyze large, non-volatile molecules. The analyte is dissolved in a liquid matrix and placed on a target where it...
In mass spectrometry, a sample’s molecules are ionized in a vacuum and then exposed to a...
In mass spectrometry, a sample’s molecules are ionized in a
vacuum and then exposed to a uniform electric field created by a
high-voltage plate in the acceleration chamber. The electric field
accelerates the ions until they arrive at the next section of the
device, designated as the separation chamber. In this section, the
drifting ions are sorted by their mass-to-charge ratio (m/q).
The separation chamber in a time-of-flight mass spectrometer
(TOF-MS) is linear and has no electric or magnetic fields....
Problem 4 (25 points) The figure below shows a mass spectrometer, a device used to measure...
Problem 4 (25 points) The figure below shows a mass spectrometer, a device used to measure the masses of ions. Consider a positive ion of unknown mass m and charge q = 3.2 x 10-19 C. The ion is first accelerated from rest through a potential difference of magnitude 1v1 = 750 V inside a source. After leaving the source, it travels upward at constant speed and enters a region of uniform magnetic field B = 2.5 T directed out...
5. When all of the sample to be collected has left the column, will the drop...
5. When all of the sample to be collected has left the
column, will the drop of solution coming off the tip of the column
be acidic, basic or neutral?
6. How many H+ ions would be displaced from the ion
exchange column by 1 Cu2+ ion?
7. Binding sites on the ion exchange resin are saturated
with which ion before the sample solution is added?
8. Ions are displaced from the resin binding sites by
any ion that has...
In mass spectrometry, a sample’s molecules are ionized in a
vacuum and then exposed to a uniform electric field created by a
high-voltage plate in the acceleration chamber. The electric field
accelerates the ions until they arrive at the next section of the
device, designated as the separation chamber. In this section, the
drifting ions are sorted by their mass-to-charge ratio (m/q).
The separation chamber in a time-of-flight mass spectrometer
(TOF-MS) is linear and has no electric or magnetic fields....
Problem 4 (25 points) The figure below shows a mass spectrometer, a device used to measure the masses of ions. Consider a positive ion of unknown mass m and charge q = 3.2 x 10-19 C. The ion is first accelerated from rest through a potential difference of magnitude 1v1 = 750 V inside a source. After leaving the source, it travels upward at constant speed and enters a region of uniform magnetic field B = 2.5 T directed out...
5. When all of the sample to be collected has left the
column, will the drop of solution coming off the tip of the column
be acidic, basic or neutral?
6. How many H+ ions would be displaced from the ion
exchange column by 1 Cu2+ ion?
7. Binding sites on the ion exchange resin are saturated
with which ion before the sample solution is added?
8. Ions are displaced from the resin binding sites by
any ion that has...
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