(a)
Interpretation: The number and kinds of atoms present in ascorbic acid (vitamin C) need to be determined.
Concept Introduction: Molecular formula tells about the total number of atoms of the element present in the molecule of a substance. It confirms the type of atoms as well the number of atoms of the same type present in the molecule. For example, the molecular formula of water is
(a)
Explanation of Solution
The given compound is ascorbic acid with the molecular formula
Thus, the number of atoms and kind of atoms present in the molecule is 12 and 3 respectively.
(b)
Interpretation: The number and kinds of atoms present in sucrose (table sugar) need to be determined.
Concept Introduction: Molecular formula tells about the total number of atoms of the element present in the molecule of a substance. It confirms the type of atoms as well the number of atoms of the same type present in the molecule. For example, the molecular formula of water is
(b)
Explanation of Solution
The given compound is sucrose acid with the molecular formula
Thus, the number of atoms and kind of atoms present in the molecule is 45 and 3 respectively.
(c)
Interpretation: The number and kinds of atoms present in trinitrotoluene (TNT) need to be determined.
Concept Introduction: Molecular formula tells about the total number of atoms of the element present in the molecule of a substance. It confirms the type of atoms as well the number of atoms of the same type present in the molecule. For example, the molecular formula of water is
(c)
Explanation of Solution
The given compound is trinitrotoluene with the molecular formula
Thus, the number of atoms and kind of atoms present in the molecule is 21 and 4 respectively.
Chapter 8 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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