What is the most characteristic feature of the mass spectra of compounds containing one bromine atom?

Compounds containing bromine atoms That means that a compound containing 1 bromine atom will have two peaks in the molecular ion region, depending on which bromine isotope the molecular ion contains. Unlike compounds containing chlorine, though, the two peaks will be very similar in height.

Where is bromine on a mass spectrum?

However, the farthest large peak to the right in its mass spectrum is at 110. There is another large peak at 108. In the periodic table, the atomic mass of bromine is listed as 80, but that is just an average. Bromine is really about 50% 79Br and 50% 81Br.

What is the molar mass of br2?

159.808 g/molDiatomic Bromine / Molar mass

What is the molecular mass of br2?

What will the ratio of the molecular ion or parent peak to the M 2 PEAK be for a compound containing bromine?

Bromine has two isotopes, 79Br and 81Br in an approximately 1:1 ratio (50.5 : 49.5 if you want to be fussy!). That means that a compound containing 1 bromine atom will have two peaks in the molecular ion region, depending on which bromine isotope the molecular ion contains.

How does mass spectrometry identify compounds?

Mass spectrometry can be used to analyze the molecular structure of organic compounds such as 2-butanone. In this technique, the compound of interest is ionized in a vacuum chamber, and the charges and masses of the ions that break off from the compound are detected.

How do you interpret mass spectrometry results?

A mass spectrum will usually be presented as a vertical bar graph, in which each bar represents an ion having a specific mass-to-charge ratio (m/z) and the length of the bar indicates the relative abundance of the ion. The most intense ion is assigned an abundance of 100, and it is referred to as the base peak.