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(a)
Interpretation:
Exact mass of
Concept Introduction:
Molecular mass is defined as mass corresponding to mass of one molecule of substance, while nominal mass may be defined as mass of most abundant isotope of a particular ion or molecule. For instance carbon exist as two isotopes
For instance molecular mass of benzene is calculated by exact atomic masses of
However its nominal mass will take most abundant masses of
(a)
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Explanation of Solution
Assume most abundant isotope are used for each atom in
(b)
Interpretation:
Exact mass of
Concept Introduction:
Refer to part (a).
(b)
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Explanation of Solution
Since one carbon has been replaced by
Hence mass of
Observed intensity of peaks with
Expected intensity for peak with
Thus, expected intensity is
(c)
Interpretation:
Exact mass of
Concept Introduction:
Refer to part (a).
(c)
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Explanation of Solution
Exact mass of
Hence mass of
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Chapter 21 Solutions
Exploring Chemical Analysis
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