Chapter 19, Problem 19.10P

Interpretation Introduction

(a)

Interpretation:

The explanation for the fact that the $m/z=57$ fragment peak is much more intense in the spectrum of $\text{3, 3-dimethyl-2-butanone}$ than it is in the spectrum of $\text{2-hexanone}$ is to be stated.

Concept introduction:

Spectroscopy method is used to identify the structure of the substance. The mass spectroscopy is used to determine the molecular mass of a compound. In the mass spectrum, the molecular ion peak is the most important peak. The ratio $m/z$ of the molecular ion occurs at the molecular mass.

Interpretation Introduction

(b)

Interpretation:

The explanation for the fact that the spectrum of $\text{3, 3-dimethyl-2-butanone }\left(B\right)$ does not shows a fragment at $m/z=58$, but that of $\text{2-hexanone}$ shows is to be stated.

Concept introduction:

Spectroscopy method is used to identify the structure of the substance. The mass spectroscopy is used to determine the molecular mass of a compound. In the mass spectrum, the molecular ion peak is the most important peak. The ratio $m/z$ of the molecular ion occurs at the molecular mass.