Modify the given structure of pinolenic acid to draw the ionic structure corresponding to the following peak. B) m/z = 211 HO Edit Drawing CH3

The mass spectrum below is most likely of: 45 100 80 60 15 40 60 20 50 massicharge (m/z) CHy-CH-CH-OH HC-CH-OH H =CI CHy-CH-CH-NH CH-CH-0-CH,

In a mass spectrum, what m/z value would correspond to the fragment shown below?

Consider the mass spectrum below. 100 80- 60- 20 0.0- 0.0 60 100 miz SDBS, National Institute of Advanced Industrial Science and Technology Which peak is the molecular ion? Choose one OA OB OD. OG

Given the following mass spectrum, point out the molecular ion and the base peak.

In the mass spectrum of the following compounds, which is the tallest—the peak at m/z = 57 or the peak at m/z = 71? a. 3-methylpentane b. 2-methylpentane

3. ( What structures correspond to theses peaks? Show your reason. OMO m/z 97 m/z 85 m/z 73

A prominent (M+ . -18) peak suggests that the compound might be what? A. Alkane B. Alcohol C. Ether D. Ketone

1. What is the molecular ion peak in a mass spec represent? 2. What is the base peak in the mass spec? 3. In the space below differentiate between a mass spec of a compound with one chlorine and a compound with one bromine. Chlorine Bromine

What is the structure of the compound whose mass spectrum is depicted below? Relative Intensity A) 100 80 60 40 20 10 tuttin 20 COOH 40 B) 60 80 4444 C) 100 120 Br D) 140 160 CI 180 200