Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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2) One of the rules in determining molecular formulas from mass spectroscopy is the nitrogen rule.
a. Below are four different molecules containing nitrogen. Write the molecular formula and then
determine what the expected m/z is.
Molecular
formula:
m/z:
OH
NH2 NH2
∞eç
NH
HN.
NH₂
NH₂
b. What pattern do you notice relating the number of nitrogens to the mass of each molecule?
Based on this pattern, write the nitrogen rule in your own words.
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Transcribed Image Text:2) One of the rules in determining molecular formulas from mass spectroscopy is the nitrogen rule. a. Below are four different molecules containing nitrogen. Write the molecular formula and then determine what the expected m/z is. Molecular formula: m/z: OH NH2 NH2 ∞eç NH HN. NH₂ NH₂ b. What pattern do you notice relating the number of nitrogens to the mass of each molecule? Based on this pattern, write the nitrogen rule in your own words.
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