
(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)

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)

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Since one carbon has been replaced by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)

Explanation of Solution
Exact mass of
Hence mass of
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Chapter 21 Solutions
Exploring Chemical Analysis
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- Which one of the following atoms should have the largest electron affinity? a) b) c) d) 으으 e) 1s² 2s² 2p6 3s¹ 1s² 2s² 2p5 1s² 2s² 2p 3s² 3p² 1s² 2s 2p 3s² 3p6 4s2 3ds 1s² 2s² 2p6arrow_forwardAll of the following are allowed energy levels except _. a) 3f b) 1s c) 3d d) 5p e) 6sarrow_forwardA student wants to make the following product in good yield from a single transformation step, starting from benzene. Add any organic reagents the student is missing on the left-hand side of the arrow, and any addition reagents that are necessary above or below the arrow. If this product can't be made in good yield with a single transformation step, check the box below the drawing area. Note for advanced students: you may assume that an excess of benzene is used as part of the reaction conditions. : ☐ + I X This product can't be made in a single transformation step.arrow_forward
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