mass spectrometry

What are the steps of operation in the mass spectrometer?

• Accelerate, Deflect,Ionize, Detect
• Deflect,Ionize, Accelerate, Detect
• Ionize, Accelerate, Deflect, Detect
• Detect, Accelerate, Deflect, Ionize

Tags

NGSS.HS-PS3-5

Which species would get deflected by the greatest degree in the mass spectrometer?

• ¹²C⁺
• ¹³C⁺
• ¹³C²⁺
• ¹⁴C⁺

What do the heights of the peaks represent in the mass spectrum?

• number of isotopes
• relative abundance of each isotope
• average atomic mass
• charge:mass ratio

How many isotopes are shown in this mass spectrum?

• 1
• 84
• 86
• 4

What do you expect the molar mass to be for this element?

• 91.4 g/mol
• 90.0 g/mol
• 4 g/mol
• 50. g/mol

Tags

NGSS.HS-PS1-1

Based on the mass spectrum, which isotope of chlorine is most abundant?

• ³⁵Cl
• ³⁷Cl
• ⁷⁰Cl
• ⁷²Cl

Where is the base peak?

• 57 amu
• 29 amu
• 72 amu
• 43 amu

What kind of particles are used in mass spectrometry?

• Anions
• Cations

What substance does this mass spectra represent?

• hexane

• pentane

• butane

• pentene

What cation does the "83" peak represent?

• CH3COCHC

• CH3COCHCCH2

• CH3COCHCCH3

• CH3COC