Exhibit 12-2
Use the data below to answer the following question(s).
Loratidine is the active ingredient in the antihistamine Claritin .Mass spectral analysis of loratidine shows M + at m/z = 382 and M + at m/z = 384 in an approximate ratio of 3:1 in intensity.
-Refer to Exhibit 12-2.The mass spectral data indicates that loratidine contains:
A)fluorine
B)chlorine
C)bromine
D)iodine

Question

Quizplus · Accepted Answer

The presence of two peaks at m/z = 382 and m/z = 384 indicates that the loratidine molecule contains two isotopes in approximately a 3:1 ratio. The difference in mass between these isotopes is 2, which suggests that the molecule contains a chlorine atom.

Exhibit 12-2 Use the Data Below to Answer the Following Question(s)