Class Notes (838,229)
Canada (510,777)
Chemistry (535)
CHM120H5 (214)
Lecture

CHM120 Prelab questions experiment 4.docx

1 Page
273 Views
Unlock Document

Department
Chemistry
Course
CHM120H5
Professor
Judith C Poe
Semester
Winter

Description
TA : Sarah Wondmeneh 30 January, 2013 Experiment 3 - PreLab Question 1 When bromine is present in a compound, the M + 2 ion becomes very significant. This is 79 81 because bromine is comprised of two isotopes ( Br and Br) in a nearly 1:1 ratio in naturally occurring substances. If a compound contains bromine, the M+ and M + 2 ions are present at almost equal intensities. As a result, the relative intensities of the molecular ion peak and its associated isotope peaks directly indicate the number of bromine atoms in the molecular formula. The peaks would be observed at 79Br (79m/z), 8Br (81m/z), 79Br- Br (158m/z), 79Br- 81 81 81 Br (160m/z) and Br- Br (162m/z) respectively. The relative heights of the peaks would be the following: Highest peak when Br is composed of 7Br- Br and the lowest peak would be when it 81 2 consists of Br
More Less

Related notes for CHM120H5

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit