A sample of bromine containing isotopes bromine-79 and bromine-81 was analyses in a mass spectrometer.
How many peaks corresponding to Br^+ were recorded?
A)1 B)2 C)3 D)4
How many peaks corresponding to Br2^+ Were recorded?
A)1. B)2. C)3. D)4
I believe you will get 2 peaks for Br^+ (one for 79Br^+ and one for 81Br^+.
ForBr2^+ I believe you will get three peaks.
79Br2^+
81Br2^+
79,81Br2^+
To determine the number of peaks corresponding to Br^+ and Br2^+ in the mass spectrometer analysis, we need to consider the isotopes of bromine.
Bromine has two main isotopes: bromine-79 and bromine-81. These isotopes have slightly different masses due to the different number of neutrons in their atomic nuclei.
For Br^+ (single ionized bromine), we can expect to see a peak for each isotope present in the sample. So, since the sample contains bromine-79 and bromine-81, we would expect to see two peaks corresponding to Br^+.
For Br2^+ (doubly ionized bromine), we need to consider that the mass of Br2^+ will be the sum of the masses of two bromine atoms. Since bromine-79 has a smaller mass than bromine-81, there will be a significant difference between the masses of Br2^+ formed from these two isotopes. As a result, we would expect to see two distinct peaks corresponding to the two different masses of Br2^+ formed from bromine-79 and bromine-81.
Therefore, the answer to the first question is B) 2 peaks corresponding to Br^+ were recorded, and the answer to the second question is B) 2 peaks corresponding to Br2^+ were recorded.