Mass Spectroscopy Review

Front

What do the peaks on the mass spectrum represent?

Back

mass of positively charged fragments

Front

Which of the following is NOT a step in the operation of a mass spectrometer? Accelerate, Deflect, Ionize

Back

Radiate

Front

The above Mass Spectra of an unknown substance contains an M⁺ peak of 64 and an M+2 Peak. What is the molecular weight of this substance?

Back

64

Front

The above Mass Spectra of an unknown substance contains an M⁺ peak of 64 and an M+2 Peak. Which of the following could be the formula for this substance? Options: CH₃CH₂Cl, CH₃CH₂CH₂NH₂, CH₃CH₂Br, CH₃CH₂N₂

Back

CH₃CH₂Cl

Front

The above Mass Spectra of an unknown substance contains an M⁺ peak of 64 and an M+2 Peak. What element do the M/M+2 peaks help us identify the presence of?

Back

Cl

Front

What is the molecular weight of this compound?

Back

87

Front

Looking at the following Mass Spectra and molecular ion, what element is possibly found in this compound? Options: Cl, N, Br, S

Back

N

Front

Which of the following molecular formulas could correspond to the above mass spectrum? C₆H₅Br, C₆H₅Cl, C₆H₅CH₂Br, C₆H₅CH₂Cl

Back

C₆H₅Br

Front

Which of the following fragments could correspond to Peak C? ⁺CH₃, ⁺CH₂CH₃, ⁺CH₂CH₂CH₃, ⁺CH₂CH₂CH₂CH₃

Back

⁺CH₂CH₂CH₃

Front

Which of the following fragments could correspond to Peak D? ⁺CH₃, ⁺CH₂CH₃, ⁺CH₂CH₂CH₃, ⁺CH₂CH₂CH₂CH₃

Back

⁺CH₂CH₂CH₂CH₃