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Could you please help me with this organic chemistry problem? Thanks in advance!

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III) Mass Spectrometry
100
a) In the following mass spectrum,
M
the molecular ion peak
(labeled) is located at m/= = 112.
80
Circle the peak corresponding
to the base peak.
Rel. Intensity
50
40
20 -
D.07
20
40
60
80
100
120
m/z
b) Which of the following formulae are possible for the above spectrum? Circle Yes or No. If a
formula is not possible, provide a brief explanation why (fewer than 10 words).
Formula
Possible?
Brief Reason (if "No")
CAHN2CI
Yes / No
CBHBO2
Yes / No
CAH 13OCI
Yes / No
CsHsCI
Yes / No
C2HANCI2
Yes / No
C7H1102CI
Yes / No
c) Explain the presence of the (small, but present) M+3 peak. (i.e. what is possibly causing that
signal?)
d) Determine the possible molecular formula(e) from the given mass spectrum information.
M = 114: 50%
M+1 = 115; 4.5%
M+2 = 116; 0.4%

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