Concept explainers
Propose two molecular formulas for each molecular ion: (a) 102; (b) 98; (c) 119; (d) 74
(a)
Interpretation: Two molecular formulas for the given molecule are to be proposed.
Concept introduction: Molecular mass is the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element. The compound that contain
Answer to Problem 13.26P
The possible molecular formulas are
Explanation of Solution
The molecular ion peak of a given compound is observed at
Possible hydrocarbons are calculated as,
• Divide
Possible molecular formula is
• Replace one carbon by
The compound that contain
Possible hydrocarbons with
• Substitute one
Hence, the possible molecular formulas are
The possible molecular formulas are
(b)
Interpretation: Two molecular formulas for the given molecule are to be proposed.
Concept introduction: Molecular mass is the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element. The compound that contain
Answer to Problem 13.26P
The possible molecular formulas are
Explanation of Solution
The molecular ion peak of a given compound is observed at
Possible hydrocarbons are calculated as,
• Divide
• Replace one carbon by
The compound that contain
Possible hydrocarbons with
• Substitute one
Hence, the possible molecular formulas are
The possible molecular formulas are
(c)
Interpretation: Two molecular formulas for the given molecule are to be proposed.
Concept introduction: The molecular ion has odd mass, the compound may contain
Answer to Problem 13.26P
The possible molecular formulas are
Explanation of Solution
The molecular ion peak of a given compound is observed at
Possible hydrocarbons are calculated as,
• Divide
Possible compounds with
• Substitute one
Hence, the possible molecular formulas are
The possible molecular formulas are
(d)
Interpretation: Two molecular formulas for the given molecule are to be proposed.
Concept introduction: Molecular mass is the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element. The compound that contain
Answer to Problem 13.26P
The possible molecular formulas are
Explanation of Solution
The molecular ion peak of a given compound is observed at
Possible hydrocarbons is calculated as,
• Divide
• Replace one carbon by
The compound that contain
Possible hydrocarbons with
• Substitute one
Hence, the possible molecular formulas are
The possible molecular formulas are
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