c) The mass spectrum of 2,3-dibromopentane (CH; CHBr CHBr CH₂ CH3) includes the following peaks.Mass number (m/z) Relative abundance1529107109199201203i. What is the mass number of molecular ion, [CH; CHBr CHBr CH₂ CH₂]? Show your working.ii. Identify the molecular formula (including isotopic composition where relevant) of the 6 peaks.abd22efMass number (m/z)15291071091991003944450.30.60.3201203Molecule formula[CH₂]

i. What is the mass number of molecular ion, [CH; CHBr CHBr CH₂ CH]? Show your working. ii. Identify the molecular formula (including isotopic composition where relevant) of the 6 peaks. a b С d 22 e f Mass number (m/z) 15 29 107 109 199 201 203 Molecule formula [CH₂]

i. What is the mass number of molecular ion, [CH; CHBr CHBr CH₂ CH]? Show your working. ii. Identify the molecular formula (including isotopic composition where relevant) of the 6 peaks. a b С d 22 e f Mass number (m/z) 15 29 107 109 199 201 203 Molecule formula [CH₂]

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 27CTQ

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Question

c) The mass spectrum of 2,3-dibromopentane (CH; CHBr CHBr CH₂ CH3) includes the following peaks.
Mass number (m/z) Relative abundance
15
29
107
109
199
201
203
i. What is the mass number of molecular ion, [CH; CHBr CHBr CH₂ CH₂]? Show your working.
ii. Identify the molecular formula (including isotopic composition where relevant) of the 6 peaks.
a
b
d
22
e
f
Mass number (m/z)
15
29
107
109
199
100
39
44
45
0.3
0.6
0.3
201
203
Molecule formula
[CH₂]

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